JAC Class 10 Social Science Notes Economics Chapter 2 Sectors of Indian Economy

JAC Board Class 10 Social Science Notes Economics Chapter 2 Sectors of Indian Economy

→ Economy is best understood when the different economic activities are classified in different sectors.

→ Primary, secondary, tertiary, private, public, organized and unorganized are different sectors of economy in which economic activities are grouped.

→ Primary sector produces products that forms the base of other industries. This sector is also called agriculture and related sector.

JAC Class 10 Social Science Notes Economics Chapter 2 Sectors of Indian Economy

→ In secondary sector those activities are covered in which through ways of manufacturing natural products are changed into other forms. This sector is also called as industrial sector.

→ The third sector is the tertiary sector. In this activities that help in the development of the primary and secondary sectors are grouped. This sector is also called service sector.

→ To know the contribution of each sector in an economy the value of final goods and services produced by each sector in a particular year is considered.

→ The total production in three sectors in a year is what is known as Gross Domestic Product (GDP) of a country. The value of GDP indicates the size of the economy.

→ In India, GDP is calculated by Central Government ministry.

→ Historically, it has been observed that countries, which are developed today had strong primary sector in the initial stage of development and eventually the manufacturing and service sectors developed.

→ In India, more people are engaged in agricultural sector than secondary and tertiary sector, however the contribution of secondary and tertiary sector in GDP is more than the primary sector. This is mainly because more people in agriculture sector are underemployed. Underemployed is also known as disguised unemployment because as those underemployed may work but not to their full capacity and earn very less. Besides primary, secondary and tertiary sector, economic activities can be grouped under organized and unorganized sectors. Organized sector covers those activities, enterprises or places of work where the terms of employment are regular and people have assured work. They are registered by the government and have to follow its rules and regulations.

→ Unorganized sector covers those activities, which generally are outside the control of government. Jobs here are often irregular and low paid. Employment is not secure in this sector.

JAC Class 10 Social Science Notes Economics Chapter 2 Sectors of Indian Economy

→ Mostly people from backward communities, scheduled tribes and castes work in unorganized sector.

→ Another way of classification of economic activities is on the basis of ownership such as private and public sectors. In the public sector, the government owns most of the assets and the services. In the private sector, the ownership of assets and delivery of services is in the hands of private individuals or companies. Such as railways are under public sector and Reliance Industries is a private sector entity.

→ There are many activities, which are government’s responsibility and government needs to spend on them for human development.

JAC Class 10 Social Science Notes

JAC Class 10 Social Science Solutions Geography Chapter 4 Agriculture

JAC Board Class 10th Social Science Solutions Geography Chapter  4 Agriculture

JAC Class 10th Geography Agriculture InText Questions and Answers

Page 34

Question 1.
Can you name some industries based on agricultural raw material?
Answer:
Few industries based on agricultural raw materials are the oilseed industry, jute and cotton industry, woollen and textile industry, paper industry and food processing units.

Question 2.
Can you name some such types of farmings?
Answer:
Jhumming: The ‘slash and burn’ agriculture is known as ‘Milpa’ in Mexico and Central America, ‘Conuco’ in Venzuela, ‘Roca’ in Brazil, ‘Masole’ in Central Africa, ‘Ladang’ in Indonesia, ‘Ray’ in Vietnam. In India, this primitive form of cultivation is called ‘Bewar’ or ‘Dahiya’ in Madhya Pradesh, ‘Podu’ or ‘Penda’ in Andhra Pradesh, ‘Pama Dabi’ or ‘Roman’ or Bringa’ in Odisha, ‘Kumari’ in Western Ghats, ‘Valre’ or ‘Waltre’ in South-eastern Rajasthan, ‘Khil’ in the Himalayan belt, ‘Kuruwa’ in Jharkhand, and ‘Jhumming’ in the Northeastern region.

Poge 35

Question 3.
Rinjha lived with her family in a small village at the outskirts of Diphu in Assam. She enjoys watching her family members clearing, slashing and burning a patch of land for cultivation. She often helps them in irrigating the fields with water running through a bamboo canal from the nearby spring.

She loves the surroundings and wants to stay here as long as she can, but this little girl has no idea about the declining fertility of the soil and her family’s search for fresh a patch of land in the next season. Can you name the type of farming Rinjha’s family is engaged in?
Answer:
Rinjha’s family is engaged in ‘slash and bum’ or jhumming agriculture.

JAC Class 10 Social Science Solutions Geography Chapter 4 Agriculture

Question 4.
Can you enlist some crops which are grown in such farming?
Answer:
Crops such as jowar, millet, cassava, com, beans, etc. are grown.

Question 5.
Can you name some of the states of India where intensive subsistence farming is practised?
Answer:
Intensive subsistence farming is practised in Punjab, some parts of Rajasthan, Uttar Pradesh, Madhya Pradesh and Haryana.

Question 6.
Can you give some more examples of crops which may be commercial in one region and may provide subsistence in another region?
Answer:
While wheat is grown on a large scale as a commercial crop in Punjab, Haryana and Uttar Pradesh, it is grown as a subsistence crop in eastern states like Bihar and West Bengal.

Page 42

Question 7.
List the items w hich are made of rubber and are used by us.
Answer:
Rubber is an important industrial raw material. It is used for a variety of purposes
JAC Class 10 Social Science Solutions Geography Chapter 4 Agriculture 1

Page 45

Question 8.
Can you name any gene-modified seed used vastly in India?
Answer:
Cotton is the only gene-modified see vastly used in India

JAC Class 10 Social Science Solutions Geography Chapter 4 Agriculture

Question 9.
Change in cropping patterns, for example, from cereals to high-value crops will mean that India will have to import food. During 1960s this would have been seen as a disaster. But if India imports cereals while exporting high-value commodities, it will be following successful economies like Italy, Israel and Chile. These countries export farm products (fruits, olives, especially seeds and wine) and import cereals. Are we ready to take this risk? Debate the issue.
Answer:
Self-help.
Hints:

  1. India can take this risk with the assistance from the government.
  2. Some government-owned land or cooperatives can be involved in the beginning for trial.
  3. If the crop production is successful and there is a good sale, then gradually the cropping pattern can be changed.
  4. Farmers need to be educated on the techniques of cultivating high-value crops

JAC Class 10th Geography Agriculture Textbook Questions and Answers

Question 1.
Choose the right answer from the four alternatives given below.
(i) Which one of the following describes a system of agriculture where a single crop is grown on a large area?
(a) Shifting agriculture
(b) Plantation agriculture
(c) Horticulture
(d) Intensive agriculture
Answer:
(b) Plantation agriculture

(ii) Which one of the following is a rabi crop?
(a) Rice
(b) Gram
(c) Millets
(d) Cotton
Answer:
(b) Gram

(iii) Which one of the following is a leguminous crop?
(a) Pulses
(b) Jowar
(c) Millets
(d) Sesamum
Answer:
(a) Pulses

JAC Class 10 Social Science Solutions Geography Chapter 4 Agriculture

Question 2.
Answer the following questions in 30 words.
(a) Name one important beverage crop and specify the geographical conditions required for its growth.

(b) Naitte one staple crop of India and the regions where it is produced.

(c) Enlist the various institutional reform programmes introduced by the government in the interest of farmers.

(d) The land under cultivation has got reduced day by day. Can you imagine its consequences?
Answer:
(a) Tea is an important beverage crop. It grows well in tropical and sub-tropical climates having deep and fertile well- drained soil, rich in humus and organic matter. Tea bushes require warm and moist frost-free climate all through the year. Frequent showers evenly distributed over
the year ensure continuous growth of tender leaves. It is processed within the tea garden to restore its freshness.

(b) Rice is a staple crop of a majority of the people in India. It is grown in the plains of north and north-eastern India, coastal areas and the deltaic regions. Development of dense network of canal irrigation and tube wells has made it possible to grow rice in the areas of less rainfall, such as Punjab, Haryana and western Uttar Pradesh and parts of Rajasthan.

(c) The Government of India introduced several institutional reforms for the benefit of the farmers and agriculture of India. Land reform was the main focus of our first five year plan. Collectivisation, consolidation of land holdings, cooperation and abolition of zamindari, etc. were given priority to bring institutional reforms in the country after Independence. 1980s and 1990s a land development programme was initiated, which included both institutional and technical reforms.

(d) The competition for land between non- agricultural uses such as housing, etc. and agriculture has led to reduction in net sown area. This will lead to shortage of food. Food is a basic need and every citizen of the country should have access to food which provides minimum nutritional balance. There will be a huge pressure on the country’s future food security.

Question 3.
Answer the following questions in about 120 words:
(a) Suggest the initiative taken by the government to ensure the increase in agricultural production.
(b) Describe the impact of globalisation on Indian agriculture.
(c) Describe the geographical conditions required for the growth of rice.
Answer:
(a) Various initiatives taken by the government to ensure the increase in agricultural production are:

  1. Collectivisation, consolidation of holdings, cooperation and abolition of Zamindari, etc., were given priority to bring about institutional reforms in the country after independence.
  2. Laftd Reform was the main focus of our ‘First Five Year Plan’.
  3. The Green Revolution was based on the use of package technology and the White Revolution were some of the strategies initiated to improve the Indian agriculture.
  4. provision for crop insurance against drought, floods, diseases, etc.
  5. Grameen Banks, Kissan Credit Card and Personal Accident Insurance Scheme are some of the reforms by the Indian Government for the benefit of the farmers.

(b) Globalisation has been existent since the time of colonisation of India. After the 1990s, the Indian farmers have been exposed to new challenges as they are not able to compete with the developed countries because of the highly subsidised agriculture in those countries.

A fewveconomists think that Indian farmers have a bleak future if they keep growing foodgrains on small landholdings for ever increasing population. Despite being an important producer of rice, cottbn, rubber, tea, coffee, jute and spices, the agricultural products are unable to face the stiff competition.

Overuse of chemicals, dying aquifers and vanishing diversity has led to land degradation. It is said that Green Revolution is responsible for it.Farmers should adopt to genetic engineering, which is recognised as a powerful supplement in inventing new hybrid varieties of seeds. Organic farming has become popular. Indian farmers should diversify their cropping pattern from cereals to high-value crops. This will increase income and reduce environmental degradation simultaneously.

JAC Class 10 Social Science Solutions Geography Chapter 4 Agriculture

(c) Rice is a kharif crop. It requires high temperature, above 25°C and high humidity with annual rainfall above 100 cm. In the areas of less rainfall, it grows with the help of irrigation. Rice grows well in the plains of north and north¬eastern India, coastal areas and the deltaic regions. Development of dense network of canal irrigation and tube wells has made it possible to grow rice in the areas of less rainfall, such as, Punjab, Haryana, and western Uttar Pradesh and parts of Rajasthan.

NCERT ‘Project’ Work

Question 1.
Group discussion on the necessity of literacy among farmers.
Answer:
Self-help Hints:

  1. Literacy is a must for development and progress of a country.
  2. Farmers of a country need proper guidance to understand the quality of their land, what is required to keep their land fertile. To know and understand this, they need to be literate.
  3. They need to know how to run and maintain all the farming machines and implements.
  4. To understand what nutrients, fertilisers and pesticides are required for their soil.
  5. To read and understand the terms and conditions of loans taken from various sources.

Question 2.
On an outline map of India show major wheat and rice producing states.
JAC Class 10 Social Science Solutions Geography Chapter 4 Agriculture 3

NCERT Activity

Solve the puzzle by following your search horizontally and vertically to find the hidden answers.

Question 1.
The two staple food crops of India.
Answer:
Rice and wheat

Question 2.
This is the summer cropping season of India.
Answer:
Kharif

JAC Class 10 Social Science Solutions Geography Chapter 4 Agriculture

Question 3.
Pulses like arhar, moong, gram, urad contain
Answer:
Protein

Question 4.
It is a coarse grain.
Answer:
Jo war

Question 5.
The two important beverages in India are…….
Answer:
Tea, Coffee

Question 6.
One of the four major fibres grown on black soils.
Answer:
Cotton
JAC Class 10 Social Science Solutions Geography Chapter 4 Agriculture 4

JAC Class 10 Social Science Solutions

JAC Class 10 Social Science Solutions Economics Chapter 5 Consumer Rights

JAC Board Class 10th Social Science Solutions Economics Chapter 5 Consumer Rights

JAC Class 10th Economics Consumer Rights Textbook Questions and Answers

Question 1.
Why are rules and regulations required in the marketplace? Illustrate with a few examples.
Answer:
Rules and regulations are required in the market place to protect the consumers from unfair trade practices and exploitation by the sellers. Exploitation in the marketplace happens in various ways. For example, sometimes traders indulge in unfair trade practices, such as, when shopkeepers weigh less than what they should or when traders add charges that were not mentioned before, or when adulterated/defective goods are sold.

Question 2.
What factors gave birth to the consumer movement in India? Trace its evolution.
Answer:
The consumer movement arose out of dissatisfaction of the consumers as many unfair practices were being indulged in by the sellers.

JAC Class 10 Social Science Solutions Economics Chapter 5 Consumer Rights

Question 3.
Explain the need for consumer consciousness by giving two examples.
Answer:
Consumer consciousness is when consumers acquire knowledge about their rights to become a well – informed consumer, while purchasing various goods and services, e.g.,

  1. While buying commodities check for logos like ISI, Agmark or Hallmark. These logos and certification help consumers get assured of quality while purchasing the goods and services.
  2. Consumer Rights to healthy environment against water, noise and air pollution.

Question 4.
Mention a few factors which cause exploitation of consumers.
Answer:
Traders try to earn a profit by using unfair means like weighing less, unfair trade practices and resort to adulteration, hoarding and black – marketing. Ignorance of the consumers.

JAC Class 10 Social Science Solutions Economics Chapter 5 Consumer Rights

Question 5.
What is the rationale behind the enactment of Consumer Protection Act 1986?
Answer:
The Indian Government enacted the Consumer Protection Act in 1986, popularly known as COPRA for the protection of consumers.

  1. Putting pressure on pvt. firms and the govt, to curb unfair trade practices.
  2. Recognising various rights of the consumers to seek redressal.

Question 6.
Describe some of your duties as consumers if you visit a shopping complex in your locality.
Answer:
Join Consumer Awareness Organisations, take warrantee card with purchase, cash memos/bills with items, purchase quality marke products with ISI mark, Agmark, etc., make complaints for genuine grievances.

Question 7.
Suppose you buy a bottle of honey and a biscuit packet. Which logo or mark you will have to look for and why?
Answer:
We would look for the ‘agmark’ symbol on them because this mark is certified by the government and assures the quality of the product.

JAC Class 10 Social Science Solutions Economics Chapter 5 Consumer Rights

Question 8.
What legal measures were taken by the government to empower the consumers in india?
Answer:

  1. Under COPRA a three-tier quasi – judicial machinery at the district, state and national levels was. set up for redressai of consumer disputes.
  2. The district level court deals with the cases involving claims upto 20 Iakh, the state level courts between 20 lakh and I crore and the national level court deals with the cases involving claims exceeding 1 crore.
  3. Thus, the Act has enabled us as consumers to have the right to represent in the consumer courts.

Question 9.
Mention some of the rights of consumers and write a few sentences on each. j
Answer:

  1. Right to safety: The consumers have the right to be protected against the selling of hazardous goods to life and property.
  2. Right to be informed: Consumers have the right to be informed about the quality, quantity, purity, standard and price of goods.
  3. Right to be informed: Consumers can raise their voice against exploitation at consumer forums or consumer courts.
  4. Right to choose: Consumers have a right to choice from various goods and services at competitive prices.
  5. Right to seek Redressal: Consumers have the right to fair settlement or compensation of genuine grievances against unfair trade practices or exploitation.

Question 10.
By what means can the consumers express their solidarity?
Answer:
Consumer Clubs, Resident Welfare Associations are some of the ways in which consumers can express their solidarity.

JAC Class 10 Social Science Solutions Economics Chapter 5 Consumer Rights

Question 11.
Critically examine the progress of consumer movement in India.
Answer:

  1. The consumer redressal process in India is time-consuming and expensive as a consumer has to engage the lawyers.
  2. If cash memos are not issued evidences are not easy to gather.
  3. The existing laws are also not very clear on the issue of compensation for defective products.
  4. Laws to protect workers in the unorganised sectors are weak.
  5. Rules and regulations for working of markets are often not followed.

Question 12.
Match the following.

(i) Availing details of ingredients of a product (a) Right to safety
(ii) Agmark (b) Dealing with consumer cases
(iii) Accident due to faulty engine in a scooter (c) Certification of edible oil and cereals
(iv) District – Consumer Courtt (d) Agency that develop standards for goods and services
(v) Consumers  International (e) Right to information
(vi) Bureau of Indian Standards (f) Global level institution of consumer welfare organisations

Answer:

(i) Availing details of ingredients of a product (e) Right to information
(ii) Agmark (c) Certification of edible oil and cereals
(iii) Accident due to faulty engine in a scooter (a) Right to safety
(iv) District – Consumer Courtt (b) Dealing with consumer cases
(v) Consumers . International (f) Global level institution of consumer welfare organisations
(vi) Bureau of Indian Standards (d) Agency that develop standards for goods and services

Question 13.
(i) COPRA applies only to goods.
Answer:
False

(ii) India is one of the many countries in the world which has exclusive courts for consumer redressal.
Answer:
True

(iii) When a consumer feels that he has been exploited, he must file a case in the District Consumer Court.
Answer:
True

(iv) It is worthwhile to move to consumer courts only if the damages incurred are of high value.
Answer:
False

(v) Hallmark is the certification maintained for standardisation of jewelry.
Answer:
True

(vi) The consumer redressal process is very simple and quick.
Answer:
False

(vii) A consumer has the right to get compensation depending on the degree of the damage.
Answer:
False

JAC Class 10 Social Science Solutions

JAC Class 10 Social Science Important Questions Economics Chapter 5 Consumer Rights

JAC Board Class 10th Social Science Important Questions Economics Chapter 5 Consumer Rights

Multiple Choice Questions

Question 1.
MRP on a product means
(a) Minimum retail price
(b) Maximum retail price
(c) Micro retail price
(d) None of these
Answer:
(b) Maximum retail price

Question 2.
The consumer movement in India has led to the formation of various organizations which are locally known as:
(a) Consumer Protection Council
(b) The Consumer International
(c) The Consumer Protection Act
(d) The World Trade Organisation
Answer:
(c) The Consumer Protection Act

JAC Class 10 Social Science Important Questions Economics Chapter 5 Consumer Rights

Question 3.
When was the ‘Right to Information Act’ passed?
(a) In January 2002
(b) In March 2004
(c) In October 2005
(d) In July 2007
Answer:
(c) In October 2005

Question 4.
Which one of the following is the agency that develops standards for goods and services in India?
(a) COPRA
(b) National Consumer Court
(c) Consumer Protection Council
(d) Bureau of Indian Standards
Answer:
(d) Bureau of Indian Standards

Question 5.
The department of consumer affairs is found at:
(a) National level
(b) State level
(c) Both (a) and (b)
(d) None of these
Answer:
(c) Both (a) and (b)

Question 6.
The National Consumer Day is celebrated on:
(a) 24th December
(b) 24th November
(c) 24th October
(d) 24th September
Answer:
(a) 24th December

JAC Class 10 Social Science Important Questions Economics Chapter 5 Consumer Rights

Question 7.
Rules and regulations are required in the marketplace for:
(a) Protecting sellers
(b) Protecting consumers
(c) Integrating the consumers
(d) None of these
Answer:
(b) Protecting consumers

Question 8.
If there is any complaint regarding goods or service, the seller shifts the responsibility to:
(a) Maker
(b) Product or service
(c) Consumer
(d) Nobody
Answer:
(c) Consumer

Question 9.
What gave rise to the ‘Consumer Movement’ in India?
(a) Inflation
(b) Violence
(c) Hoarding
(d) None of these
Answer:
(c) Hoarding

Question 10.
For which of these products does it become mandatory for the producers to get certified?
(a) Fruits
(b) Telephones
(c) Cigarettes
(d) LPG cylinders
Answer:
(d) LPG cylinders

Very Short Answer Type Questions

Question 1.
What is Consumer Protection?
Answer:
Consumer Protection refers to protect the consumers from the exploitation of traders in the marketplace.

Question 2.
Who are consumers?
Answer:
Consumers are those people who participate in the market when they purchase goods and services that they need and these are the final goods that people as consumers use.

Question 3.
Write any one factor which leads to exploitation of consumers.
Answer:
Traders try to earn a profit by using unfair means like weighing less, unfair trade practices and resort to adulteration, hoarding and black – marketing. Ignorance of the consumers.

Question 4.
How did the consumer movement originate in India?
Answer:
The consumer movement originated in India with the necessity of protecting and promoting the interests of consumers against unethical and unfair trade practices.

JAC Class 10 Social Science Important Questions Economics Chapter 5 Consumer Rights

Question 5.
How many organizations have been set up at the international level to protect consumers?
Answer:
220 organizations have been set up at the international level to protect consumers.

Question 6.
MRP of the product falls under which right?
Answer:
MRP of the product falls under the right to be informed.

Question 7.
Write any two rights of consumers.
Answer:

  1. Right to Safetyand
  2. Right to be Informed.

Question 8.
Write the importance of consumer forums.
Answer:
Consumer forums create awareness and guide consumers on how to file cases in the consumer court.

Question 9.
What are Agmark, ISI and ISO related to?
Answer:
Agmark is related to agricultural produce, ISI is related to consumer goods while ISO certifies the standards of products at the international level.

JAC Class 10 Social Science Important Questions

JAC Class 10 Social Science Notes Economics Chapter 1 Development

JAC Board Class 10 Social Science Notes Economics Chapter 1 Development

→ Development has many aspects. Development goal and aspiration for everyone is different.

→ Every person can have different developmental goals. What may be development for one may not be development for the other. It may even be destructive for the other. Two people may have same but conflicting goals.

→ Earning better income, may be the aspiration of many; however people also seek things like equal treatment, freedom, security, and respect of others. They resent discrimination. All these are also important goals. People look for mix of goals.

→ Even the notion of national development could be different for every individual, different person could have different as well as conflicting notions of a country’s development.

→ National development means development for all sections of the society.

→ To compare development of different countries or a state’s per capita income is considered to be one of the most important attribute.. Per capita income is calculated on the basis of total income of the country divided by the total population.

JAC Class 10 Social Science Notes Economics Chapter 1 Development

→ In 2006, World Bank in its World Development report classified the countries as devejoped or less developed on the basis of the average income or per capita income of the country. Countries with per capita income of US $ 12,056 per annum and above in 2017, are called rich countries and those with per capita income of US $ 955 or less are called low-income countries. India comes in the category of low middle income countries because its per capita income in 2017 was just US $ 1820 per annum.

→ While average incomes are useful for comparison, but they also hide disparities within the country or a state. Even though the level of income is important, yet it is an inadequate measure of the level of development. Besides income, quality of life, education status, infant mortality rate, health standard, security, freedom and sustainability of environment are some basic criteria, to access development of an area or a region.

→ Human Development Report published by UNDP compares countries based on the educational levels of the people, their health status and per capita income. It is the people, their health, their well-being, that is most important aspect of human development. The other important aspect is sustainability of development. Sustainable development means to meet the demand of the current generation without compromising on the of the future generation resources.

→ Sustainable development is possible when we judiciously utilize the natural resources (both renewable and non-renewable) without impacting the ecological balance. Sustainability is important to enjoy the benefits of development in future as well.

JAC Class 10 Social Science Notes

JAC Class 10 Social Science Solutions Economics Chapter 4 Globalisation and the Indian Economy

JAC Board Class 10th Social Science Solutions Economics Chapter 4 Globalisation and the Indian Economy

JAC Class 10th Economics Globalisation and the Indian Economy InText Questions and Answers

Page 57

Question 1.
Complete the following statement to show how the production process in the garment industry is spread across countries.
The brand tag says ‘Made in Thailand’ but they are not Thai products. We dissect the manufacturing process and look for the best solution at each step. We are doing it globally. In making garments the company may, for example, get cotton fibre from Korea.
Answer:
The brand tag says ‘Made in Thailand’ but they are not Thai products. The manufacturing process is being dissected and looked for the best solution at each step. Products are produced globally. In making garments; the company may, for example, get cotton fibre from Korea, weaving and embroidery from India, buttons from France, ironing in Sri Lanka and sell all over the world.

Page 59

Question 2.
Read the passage given below and answer the questions.
Ford Motors, an American company, is one of the world’s largest automobile manufacturers with production spread over 26 countries of the world. Ford Motors came to India in 1995 and spent a 1700 crore to set up a large plant near Chennai. This was done in collaboration with Mahindra and Mahindra, a major Indian manufacturer of jeeps and trucks. By the year 2014, Ford Motors was selling 77,000 cars in the Indian markets, while another 77,000 cars were exported from India to South Africa, Mexico and Brazil. The company wants to develop Ford India as a component supplying base for its other plants across the globe. Discuss the following factors:

(i) Would you say Ford Motors is an MNC? Why?
Answer:
Yes, Ford Motors is an MNC because its production units are spread across the world with its head office in the USA.

(ii) What is foreign investment? How much did Ford Motors invest in India?
Answer:
Investment made by MNCs to buy assets, such as land, building, machines and other equipment is called foreign investment. Ford Motors invested 1700 crore to set up a plant near Chennai

(iii) By setting up their production plants in India, MNCs such as Ford Motors tap the advantage not only of the large markets that countries such as India provide, but also lower costs of production. Explain the statement.
Answer:
MNCs such as Ford Motors and others set up production in India and other developing countries because of availability of skilled and unskilled labour, favourable government policies, and assured other factors of production. They set up production close to the markets.

(iv) Why do you think the company wants to develop India as a base for manufacturing car components for its global operations?
Answer:
The coijipany wants to develop India as a base for manufacturing car components for its global operations because:
(a) cost of labour and other resources in India.
Answer:
Cost of labour and other resources is low iifelndia. The workers are also able to manufacture or produce the auto parts required for the manufacturing of the car and MNC feels that the Chennai plant can supply to their other plants across the world.

(b) the presence of several local manufacturers who supply auto parts to Ford Motors
Answer:
Cost or labour and production of auto parts is low which makes manufacturing of their cars profitable.

(c) closeness to a large number of buyers in India and China.
Answer:
Cost of transport of auto parts becomes cheap.

(v) In what ways will the production of cars by Ford Motors in India lead to interlinking of production?
Answer:
Ford Motors set up their production plant in Chennai with collaboration of Mahindra and Mahindra, a major Indian manufacturer of jeeps and trucks. They have involved local companies to supply auto parts for their production. This has brought in competition and not only improved the quality of production among the workers in India, but has also helped in interlinking the markets as consumers are now looking for better choices in the markets.

(vi) In what ways is an MNC different from other companies?
Answer:
An MNC is a company with huge financial resources. It has the capacity to expand to other countries. An ordinary company may not have huge financial resources. An MNC owns and controls production in more than one country. An ordinary company owns and controls production in one country, i.e., its home country. An MNC invests in other countries besides its own country. An ordinary company invests only in its home country.

(vii) Nearly all major multinationals are American, Japanese or European, such as Nike, Coca-Cola, Pepsi, Honda, Nokia. Can you giiess why?
Answer:
Nearly all the major MNCs are American, Japanese or European because they are developed nations with immense wealth and power. They have surplus funds and make huge profits, which enable them to utilise the weak policies of the developing nations to set up their production at low costs.

Page 61

Question 3.
What was the main channel connecting countries in the past? How is it different now?
Answer:
Trade was the main channel connecting distant countries. Nowadays, MNCs have set up offices and factories for production in regions where they can get cheap labour and other resources.

Question 4.
Distinguish between foreign trade and foreign investment.
Answer:
The money that is invested by an MNC for buying land, building, machines and other equipment is called foreign investment. Foreign trade is the exchange of goods and services between different countries.

Question 5.
In recent years China has been importing steel from India. Explain how the import of steel by China will affect
(a) steel companies in China.
(b) steel companies in India.
(c) industries buying steel for production of other industrial goods in China.
Answer:
(a) The, steel companies in China will get sufficient supply of steel from the markets in India.

(b) The steel companies in India will expand their production to supply to China, may reduce the cost of production to increase their supply to China and capture a wider space in their market.

(c) Industries buying steel for production of other industrial goods in China may benefit from the import from India as they will get greater choice at a low cost.

Question 6.
How will the import of steel from India into the Chinese markets lead to integration of markets for steel in the two countries? Explain.
Answer:
Export of steel from India to China will lead to integration of markets. The workers from India in the steel manufacturing industry will strive to improve their quality and quantity of production. This will improve their earning and standard of living. The Chinese industrialists will get a variety of options to choose from the variety of steel available to them in the markets at cheap rates.

Page 62

Question 7.
What is the role of MNCs in the globalisation process?
Answer:
Globalisation process has been enhanced by MNCs. MNCs have enabled trade, foreign investment and brought about liberalisation. The setting up of MNCs across various parts of the world, especially in the developing countries has interlinked the economies. This has raised the standards of living of the people of developing countries; they have better options in the markets to choose from. It has also improved the quality and quantity of production of some Indian industries which have tied up with MNCs.

Question 8.
What are the various ways in which countries can be linked?
Answer:
The various ways in which countries can be linked are

  1. through exchange of goods and services between different countries,
  2. through foreign investments done by MNCs in various developing countries to set up their production plants,
  3. immigration of people from one country to another in search of better income, better jobs or better education.

Question 9.
Choose the correct option: Globalisation, by connecting countries, shall result in
(a) lesser competition among producers.
(b) greater competition among producers.
(c) no change in competition among producers.
(b) greater competition among producers.
Answer:
(b) greater competition among producers.

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Question 10.
Using IT in Globalisation. A news magazine published for London readers is to be designed and printed in Delhi. The text of the magazine is sent through Internet to the Delhi office. The designers in the Delhi office get orders on how to design the magazine from the office in London using telecommunication facilities. The designing is done on a computer. After printing, the magazines are sent by air to London. Even the payment of money for designing and printing from a bank in London to a bank in Delhi is done instantly through the Internet (e – banking)
In the above example, underline the words describing the use of technology in production.
Answer:

  1. A news magazine published for London readers is to be designed and printed in Delhi.
  2. The text of the magazine is sent through the Internet to the Delhi office.
  3. The designers in the Delhi office get orders on how to design the magazine from the office in London using telecommunication facilities.
  4. The designing is done on a computer.
    After printing, the magazines are sent by air to London.
  5. Even the payment of money for designing and printing from a bank in London to a bank in Delhi is done instantly through the Internet (e – banking)

Question 11.
How is information technology connected with globalisation? Would globalisation have been possible without expansion of IT?
Answer:
During the past few years, Information Technology (IT) has played an important role in the process of globalisation. IT has connected the countries across the world. Even the most remote cities and towns are now connected through excellent telecommunication facilities. From banking to placing orders for various products can be done through the Internet. It has transformed the way business has been conducted. E – commerce is the new way to do trade.

Question 12.
What do you understand by liberalisation of foreign trade?
Answer:
Removing trade barriers or trade restrictions set by the government is known as liberalisation of foreign trade.

Question 13.
Tax on imports is one type of trade barrier. The government could also place a limit on the number of goods that can be imported. This is known as quotas. Can you explain, using examples of Chinese toys, how quotas can be used as trade barriers? Do you think this should be used? Discuss.
Answer:

  1. Quotas can be used to restrict the entry of low quality products into the Indian markets.
  2. This will ensure quality control of the products. This will also encourage the use of indigenous products.
  3. Quotas may be used to a certain extent to protect and safeguard the welfare of the small producers and farmers.

Question 14.
Fill in the blanks.
Answer:
WTO was started at the initiative of developed countries. The aim of the WTO is to liberalise international trade. WTO establishes rules regarding international trade for all countries, and sees that these rules are obeyed. In practice, trade between countries is not free and fair. Developing countries like India have been forced by WTO to remove trade barriers, whereas developed countries, in many cases, have continued to provide protection to their producers.

Question 15.
What do you think can be done so that trade between countries is more fair?
Answer:
Trade between countries can be more fair if both countries remove trade barriers and encourage the free exchange of goods and services. The demand and supply in the market should determine the volume of products that should be traded between the countries.

Question 16.
In the above example, we saw that the US government gives massive sums of money to farmers for production. At times, governments also give support to promote production of certain types of goods, such as those which are environmentally friendly. Discuss whether these are fair or not.
Answer:

  1. The support measures are not justified when they cover goods which enter international market.
  2. Supporting its own farmers at the cost of international trade cannot be called a fair practice.
  3. If products are beneficial for the whole world, then every country should follow such practices.

Question 17.
How has competition benefited people in India?
Answer:
Competition has benefited the people in India.

  1. It has been an advantage to the consumers, particularly the well – off sections in the urban areas. There are greater choices for the consumers who enjoy improved quality and lower prices for several products.
  2. Therefore, they are able to enjoy higher standardsrif living than before.
  3. The local companies, supplying raw materials, etc., to the industries set up by MNCs have prospered.
  4. Indian producers have improved their technology and quality to compete in foreign market.
  5. The competition has also enabled some of the top Indian companies to become MNCs themselves.

Question 18.
Should more Indian companies emerge as MNCs? How would it benefit the people in the country?
Answer:
Yes, It will benefit the people if more Indian companies emerge as MNCs. As Indian MNCs make profits abroad, it will earn more foreign exchange. It can expand its business which will open employment opportunities for people across various states. They will strive further to improve the quality of products and produce in large volume. The economy of India will improve.

Question 19.
Why do governments try to attract more foreign investment?
Answer:
Governments try to attract more foreign investment to stabilise its financial resources. It pushes the growth of the economy. The taxes received from the foreign investments help the government. New job opportunities, which are created in the country, support many people. The service industry expands with foreign investments.

Question 20.
In Chapter 1, we saw what may be development for one may be destructive for others. The setting of SEZs has been opposed by some people in India. Find out who are these people and why are they opposing it.
Answer:
It is mostly the rural people who oppose to the formation of SEZs as their land is acquired by big MNCs and their livelihoods are taken away from them. They are not qualified to work in the SEZs and feel alienated and ignored by the government. Even small producers, who do not fall within the SEZs but can produce similar products feel they are not protected by the government policies and are overshadowed by MNCs and their brand names.

Question 21.
Rising Competition Ravi did not expect that he would have to face a crisis in such a short period of his life as industrialist. Ravi took a loan from the bank to start his own company producing capacitors in 1992 in Hosur, an industrial town in Tamil Nadu. Capacitors are used in many electronic home appliances including tube lights, television etc. Within three years, he was able to expand production and had 20 workers working under him. His struggle to run his company started when the government removed restrictions on imports of capacitors as per its agreement at WTO in 2001. His main clients, the television companies, used to buy different components including capacitors in bulk for the manufacture of television sets.

However, competition from the MNC brands forced the Indian television companies to move into assembling activities for MNCs. Even when some of them bought capacitors, they wouldprefer to import as the price of the imported item was half the price charged by people like Ravi. Ravi now produces less than half the capacitors that he produced in the year %000 and has only seven workers working for him. Many of Ravi s friends in the same business in Hyderabad and Chennai have closed their units. What are the ways in which Ravi’s small production unit was affected by rising competition?
Answer:
Ravi’s small production was affected adversely by the competition from MNCs. As the government removed restrictions on import of capacitors, the Indian television brands were forced to move into assembling. Ravi lost his clients. As imported capacitors were cheaper, people now preferred to buy imported ones to purchase it from Ravi. Ravi’s friends who were in the same business in Chennai and Hyderabad had to close their units and Ravi feared that he too would have to close down his industry as his production reduced and was not able to recover the cost of production.

Question 22.
Should producers such as Ravi stop production because their cost of production is higher compared to producers in other countries? What do you think?
Answer:
Producers such as Ravi should not close down their production units. They should approach the government to suggest them to make policies and provide subsidies to support small producers. Banks should provide loans at low interest rates to encourage the small producers. They should be inspired to improve their technology and compete in the market.

Question 23.
Recent studies point out that small producers in India need three things to compete better in the market:
1. better road’s, power, water, raw materials, marketing and information network
2. improvements and modernisation of technology
3. timely availability of credit at reasonable interest rates.
(i) Can you explain how these three things would help Indian producers?
(ii) Do you think MNCs will be interested in investing in these? Why?
(iii) Do you think the government has a role in making these facilities available? Why? Discuss.
Answer:

  1. Better infrastructure will help the producers to compete in the market as they can work more efficiently and make timely deliveries.
  2. Modernisation of technology will help alleviate the quality of production by the producers. They will also be able to increase the volume of produce.
  3. Timely availability of credit will enable the producers to purchase good quality raw materials required to increase their competitiveness in the market.
    • MNCs will not be ready to invest in these as this will reduce competition and they will lose their share in the market.
    • Government should look into these matters to help the indigenous producers rise up and compete in the market. This will in the long run boost the Indian economy.
    • Government needs to take steps that WTO rules and regulations, policies are free and fair for all. It should be uniform for all the countries involved in trade practices through WTO.

Question 24.
In what ways has competition affected workers, Indian exporters and foreign MNCs in the garment industry?
Answer:
With the relaxation in government policies to attract MNCs, the workers have lost their regular jobs and are employed ‘flexibly’ by the companies. They not only have to put in long hours of job but their jobs are not secure. They are hired when there is intense work pressure, and may be a$ked to leave when there is not much work.

Question 25.
What can be done by each of the following so that the workers can get a fair share of benefits brought by globalisation?
(a) government
(b) employers at the exporting factories
(c) MNCs
(d) workers
Answer:
(a) Government can introduce policies, rules and regulations for free and fair globalisation.

(b) Employers at the exporting factories can invest in new technology, and try to support the small producers to use the technology to raise their quality and volume of production.

(c) MNCs can give special training to the small producers to use the new technologies and may also offer them financial aid.

(d) Workers need to upgrade themselves regarding the latest technology and create a mindset to meet the challenges of the present century.

Question 26.
One of the present debates in India is whether companies should have flexible policies for employment. Based on what you have read in the chapter, summarise the point of view of the employers and workers.
Answer:
The points of view of the employers and the workers in this regard are as follows:

  • Employers: Employers prefer to employ workers ‘flexibly’ when there is work and lay them off when there is no work. This lowers the cost of production.
  • Workers: Workers prefer a regular job with regular earning, and other benefits, such as sick leaves, provident, fund, gratuity, etc. Workers prefer secured jobs where they can support their family.

JAC Class 10th Economics Globalisation and the Indian Economy Textbook Questions and Answers

Question 1.
What do you understand by globalisation? Explain in your own words.
Answer:
Globalisation is the process of rapid integration or interconnection betweencountries. Globalisation encourages movement of more and more goods and services, investments and technology between countries. It inspires the movement of people between countries to search for better income, jobs or better education.

Question 2.
What were the reasons for putting barriers to foreign trade and foreign investment by the Indian government? Why did it wish to remove these barriers?
Answer:
The Indian government introduced barriers to foreign trade and foreign investment after Independence for the following reasons:

  1. To protect the producers within the country from foreign competition.
  2. The industries were at their nascent stage in the 1950s and 1960s, and competition from imports at that stage would have created obstacles for the emergence of indigenous industries. In the beginning of 1991, there were some far – reaching changes in policy in India.
    • The government decided that it was time for the Indian producers to face the competition from producers around the globe.
  3. The government thought that this competition would encourage the producers within the country to improve their performance and improve their quality.

Question 3.
How wbuld flexibility in labour laws help companies?
Answer:
To attract foreign investment, the Government of India has allowed flexibility in labour laws. This has allowed many of the MNCs to ignore certain rules that aim to protect the workers’ rights. Instead of hiring workers on a regular basis, companies hire workers ‘flexibly’ for short periods when there is intense pressure of work. This is done to reduce the cost of labour for the company.

Question 4.
What are the various ways in which MNCs set up, or control, production in other countries?
Answer:
There are various ways in which MNCs can set up, or control, production in other countries.
1. MNCs are set up close to the market  4 where there is availability of skilled and unskilled labour at low cost; and availability of other factors of production.

2. At times, MNCs set up production jointly with some of the local companies of the countries where it sets up its plant.

3. The most common route for MNC investments is to buy local companies and then to expand production. For example, Cargill Foods, a very large American MNC bought Parakh Foods, which had built a large marketing network in various parts of India. Cargill is now the largest producer of edible oil in India, with a capacity to make 5 million pouches daily.

4. Large MNCs in developed countries place orders for production with small producers. For example, a large number of small producers supply garments, footwear, sports items, etc., to MNCs, which then sell these products under their own brand names to the customers. These large MNCs have huge power to decide the price, quality, delivery and labour conditions for these distant producers.

Question 5.
Why do developed countries want developing countries to liberalise their trade and investment? What do you think should the developing countries demand in return?
Answer:

  1. Developed countries want developing countries to liberalise their trade and investment because developed countries believe that all barriers to foreign trade and investment are harmful.
  2. Trade between countries should be ‘free’ and all countries in the world should liberalise their policies.
  3. The developed countries can set up their plants and offices in the developing countries at lower costs, sell their products at a higher price and earn profits.
  4. The developing countries should in return demand for the labour laws be followed strictly to protect the rights of the labourers.
  5. As the MNCs earn profits, they should be levied taxes and there should be no relaxation in it.
  6. Trade practices should be fair. The developed countries should stop giving subsidies to their agricultural sector. The developed countries should not also keep any trade barriers.

Question 6.
“The impact of globalisation has not been uniform.” Explain this statement.
Answer:
The impact of globalisation has not been uniform. It has both positive and negative influences on the economy and life of the people.

  1. It has been of an advantage to consumers, particularly the well-off sections in the urban areas. There is greater choice before the consumers who now enjoy improved quality and lower prices for several products.
  2. People can now enjoy higher standards of living than was possible earlier. MNCs have established industries, such as cell phones, automobiles, electronics, soft drinks, fast food or services such as banking in urban areas. The well-off people have the purchasing power to afford these products.
  3. New jobs have also been created in these industries and services. Local companies supplying raw materials, etc., to these industries have also benefited.
  4. Globalisation has also helped several of the top Indian companies to benefit from the increased competition.
  5. They have invested in newer technology and production methods and also raised their production standards. It has enabled some large Indian companies to emerge as multinationals themselves. For example, Tata Motors, Infosys, Asian Paints, Sundaram Fasteners etc.
  6. For a large number of small producers and workers, globalisation has posed major challenges.
  7. Many small manufacturers have been hit hard because of competition. Several units have closed down rendering many workers jobless.
  8. In many industries, employers prefer to hire workers ‘flexibly’. This has made the workers jobs insecure.
  9. The workers have to put in long hours of work and may also need to do night shifts, but their wages are very low.

Question 7.
How has liberalisation of trade and investment policies helped the globalisation process?
Answer:

  1. With liberalisation, goods could be imported and exported easily. Foreign companies can now set up factories and offices in India and in other developing countries.
  2. Businesses are allowed to make decisions freely about what they wish to import or export.
  3. Liberalisation has boosted foreign trade, which has resulted in connecting the markets or integrating markets in different countries.
  4. For example, Ford Motors, an American company and one of the world’s largest automobile manufacturers set up a large plant in Chennai in collaboration with Mahindra and Mahindra, which is a major Indian manufacturer of jeeps and trucks. not only sells cars in India but also exports cars from India to South Africa, Brazil and Mexico.

Question 8.
How does foreign trade lead to integration of markets across countries? Explain with an example other than those given here.
Answer:

  1. Foreign trade creates an opportunity for the producers to reach beyond the domestic markets.
  2. Producers can sell their produce not only in markets located within the country but can also compete in markets located in other countries of the world.
  3. For the buyers, there is a wide variety of choice in the markets. They can prefer domestically produced goods to foreign imported goods.
  4. With tjie opening of trade, goods travel from one market to another. Choice of goods in the market rises. Prices of similar goods in the two markets tend to become equal.
  5. Producers in the two countries now closely compete against each other even though they are separated by thousands of miles. Foreign trade thus results in connecting or integrating the markets in different countries.
  6. For example, the Kirloskar Group has established itself as the manufacturer of indigenous technology and industry. It was the manufacturer of India’s first iron plough. One of its major successes was its affiliation with Toyota Motor Corporation of Japan in 1997, which boosted the growth of the Indian industry.

Question 9.
Globalisation will continue in the future. Can you imagine what the world would be like twenty years from now? Give reasons for your answer.
Answer:
Globalisation has both positive and negative effects on the society.

  1. WTO has initiated the process of globalisation. Removing trade barriers or trade restrictions set by the government has brought about liberalisation.
  2. This has encouraged foreign trade connecting the markets or integrating the markets in different countries.
  3. Twenty years from now, people will have more choices of products and services. More jobs may open up for the people. While more MNCs from developed countries may be found in India, many more of our Indian companies may become MNC themselves.
  4. The government should have policies that should look into the interests and welfare of the entire nation and its citizens.
  5. It should support the weaker section or the small producers so that they are able to face the competition and gradually improve and rise in the market.

Question 10.
Supposing you find two people arguing: One is saying globalisation has hurt our country’s development. The other is telling, globalisation is helping India develop. How would you respond to these arguments?
Answer:
Both arguments are true to a certain extent.
1. Negative aspects of globalisation:
Globalisation has posed as a major issue for the small producers and workers. Many small – scale industries have shut down rendering many workers jobless.

  1. With the liberalisation, government has allowed the ‘flexibility’ of labour laws. The companies do not need to follow all the labour laws that protect the workers’ rights. Instead of hiring workers on a regular basis, companies hire workers ‘flexibly’ for short periods when there is intense pressure of work.
  2. This reduces the cost of labour for the company. Most of the workers today are employed in the unorganised sector.

2. Positive aspects of globalisation:

  1. With liberalisation, came globalisation. This invited many MNCs to spread their business in India.
  2. The Central and State governments have taken several steps to attract foreign investors and foreign companies. They have set up SEZs for MNCs, which have high-class facilities. The companies do not have to pay taxes for the initial five years. The Indian government has also allowed ‘flexibility’ in the labour laws.
  3. Globalisation has been an advantage to the well – off sections in the urban areas. It has opened many job opportunities for them. They are able to make better choices in the markets as they are flooded with foreign products. The standards of living have risen.
  4. Local companies supplying raw materials to MNCs have prospered. Even the large Indian companies have benefited from the competition. They have been able to raise their production standards.
  5. Some have been able to gain from foreign collaborations. Many of them, such as Infosys, Asian Paints, Sundaram Fasteners, Tata Motors, Ranbaxy, etc., have become MNCs themselves.

Fill in the blanks.

Question 11.
Indian buyers have a greater choice of good? than they did two decades back. This is closely associated with the process of ………….. Markets in India are selling goods produced in many other countries. This means there is an increasing ………… with other countries. Moreover, the rising number of brands that we see in the markets might be produced by MNCs in India. MNCs are investing in India because ………….. While consumers have more choices in the market, the effect of rising …………. and ………. has meant greater ………….. among the producers.
Answer:
Indian buyers have a greater choice of good? than they did two decades back. This is closely associated with the process of globalisation. Markets in India are selling goods produced in many other countries. This means there is an increasing trade with other countries. Moreover, the rising number of brands that we see in the markets might be produced by MNCs in India. MNCs are investing in India because production cost is cheaper. While consumers have more choices in the market, the effect of rising demand and purchasing power has meant greater competition among the producers.

Question 12.
Match the following.

(i) MNCs buy at cheap rates from small producers (a) Automobiles
(ii) Question uotas and taxes on imports are used to regulate trade (b) Garments, footwear, sports items
(iii) Indian companies which have invested abroad (c) Call centres
(iv) IT has helped inspreading of production of services (d) Tata Motors, Infosys, Ranbaxy
(v) Several MNCs have invested in setting up factories (e) Trade barriers in India for production

Answer:

(i) MNCs buy at cheap rates from small producers (b) Garments, footwear, sports items
(ii) Question uotas and taxes on imports are used to regulate trade (d) Trade barriers in India for production
(iii) Indian companies which have invested abroad (e) Tata Motors, Infosys, Ranbaxy
(iv) IT has helped in spreading of production of services (c) Call centres
(v) Several MNCs have invested in setting up factories (a) Automobiles

Question 13.
Choose the most appropriate option.
(i) The past two decades of globalisation has seen rapid movements in
(a) goods, services and people between countries
(b) goods, services and investments between countries
(c) goods, investments and people between countries
Answer:
(a) goods, services and people between countries

(ii) The most common route for investments by MNCs in countries around the world is to
(a) set up new factories
(b) buy existing local companies
(c) form partnerships with local companies
Answer:
(b) buy existing local companies

(iii) Globalisation had led to improvement in living conditions
(a) of all people
(b) of people in the developed countries
(c) of workers in the developing countries
(d) none of the above
Answer:
(c) of workers in the developing countries

Project Activity Based Questions

Question 1.
Take some branded products that we use everyday (soaps, toothpaste, garments, electronic goods, etc.). Check which of these are produced by MNCs.
Answer:
Hints:

  1. Display the products carefully on a table.
  2. Study the labels of the products in detail. Each product will have a Registered Trademark mentioning the name of the company and the country of origin.
  3. Now classify the products produced by foreign MNCs and Indian MNCs.

Question 2.
Take any Indian industry or service of your choice. Collect information and photographs from newspapers, magazine clippings, books, television, internet, interviews with people on the following aspects of the industry:
(a) Various producers/companies in the industry
(b) Is the product exported to other countries
(c) Are there MNCs among the producers
(d) Competition in the industry
(e) Conditions of work in the industry
(f) Has there been any major change in the industry in the past fifteen years
(g) Problems that people in the industry face
Answer:
Hints:
(a) With the help of parents, teachers and elders, choose an industry which is present near your school or in your town or city.

(b) With the help of school authorities, make an appointment to visit the industry.

(c) While making the appointment, describe in points about the purpose of the visit and information that will be required. This will not only save precious time of yours but also the industry management, which usually keeps very busy throughout the day. They can also keep the reports and data ready which they can share with you.

(d) Prepare a detailed questionnaire for the various departments of the industry that you may visit. If it is too detailed, it may be forwarded to the management of the industry before, so that it can be filled beforehand. The questionnaire should be crisp and short, with only objective questions, with multiple choices or fill in the blanks.

(e) Be disciplined while questioning, going through reports, etc. A small group of 4 to 5 students can be assigned as a team to deal with various aspects of the industry. Instead of all talking together, the team leader can initiate the discussion.

(f) Any photographs taken by the students in the industry should be done with prior permission of the management of the industry.

(g) Students can refer to secondary reports as mentioned in the textbook to gather information about the industry.

JAC Class 10 Social Science Solutions

JAC Class 10 Social Science Important Questions Economics Chapter 4 Globalisation and the Indian Economy

JAC Board Class 10th Social Science Important Questions Economics Chapter 4 Globalisation and the Indian Economy

Multiple Choice Questions

Question 1.
What is an MNC?
(a) a company that controls production in more than one nation
(b) a company that controls production in more than one State in a country
(c) a company that controls production in more than one district of a State in a country
(d) a company that controls production in more than one village of a State in a country
Answer:
(a) a company that controls production in more than one nation

Question 2.
The finished products are sold by MNCs
(a) only in US and UK
(b) only in US
(c) globally
(d) only in China
Answer:
(c) globally

Question 3.
The goods and services are produced globally by
(a) China
(b) Mexico and Eastern Europe
(c) US and UK
(d) MNCs
Answer:
(d) MNCs

Question 4.
The money that is spent to buy assets, such as land, buildings, machines and other equipment is called
(a) marketing
(b) investment
(c) globalisation
(d) foreign trade
Answer:
(b) investment

Question 5.
Investment made by MNCs is called
(a) production
(b) liberalisation
(c) foreign investment
(d) foreign trade
Answer:
(c) foreign investment

Question 6.
Which large American MNC has bought smaller Indian companies, such as Parakh foods?
(a) Cargill Foods
(b) Burger King
(c) Baskin Robbins
(d) Costa Coffee
Answer:
(a) Cargill Foods

Question 7.
Which is the largest producer of edible oil in India, with a capacity to make 5 million pouches daily?
(a) Agro Tech Foods Limited
(b) Gujarat Ambuja Exports
(c) Adani Wilmar Limited
(d) Cargill
Answer:
(d) Cargill

Question 8.
Which American company is one of the world’s largest automobile manufacturers with production spread over 26 countries of the world?
(a) General Motors
(b) Ford Motors
(c) Fiat Chrysler Automobiles
(d) Tesla Motors
Answer:
(b) Ford Motors

Question 9.
What creates an opportunity for the producers to reach beyond the domestic markets?
(a) Investment
(b) Liberalisation
(c) Advertising
(d) Foreign trade
Answer:
(d) Foreign trade

Question 10.
A large part of the foreign trade is also controlled by whom?
(a) Moneylenders
(b) Communication technology
(c) MNCs
(d) Municipalities
Answer:
(c) MNCs

Very Short Answer Type Questions

Question 1.
What is globalisation?
Answer:
Globalisation is defined as the integration between countries through foreign trade and foreign investments by multinational corporations (MNCs).

Question 2.
Where are MNCs set up and why?
Answer:
MNCs have set up offices and factories for production in regions where they can get cheap labour and other resources. This is done so that the cost of production is low and the MNCs can earn greater profits.

Question 3.
Why is Mexico and Eastern Europe useful for MNCs?
Answer:
Mexico and Eastern Europe are useful for their closeness to the markets in the US and Europe.

Question 4.
How has India attracted the MNCs?
Answer:
India has highly skilled engineers who can understand the aspects of production. It also has educated English speaking youth wjio can provide customer care services.

Question 5.
Define foreign investment. What is the most common route for MNC investments?
Answer:
Investment made by MNCs is called foreign investment. The most common route for MNC investments is to buy local companies and then to expand production.

Question 6.
With which company did Ford Motors collaborate within India to set up a large plant in Chennai?
Answer:
Ford Motors, an American company and one of the world’s largest automobile manufacturers collaborated with Mahindra and Mahindra, a major Indian manufacturer of jeeps and trucks.

Question 7.
What is liberalisation?
Answer:
Removing trade barriers or trade •restrictions set by the government is known as liberalisation.

Question 8.
Write the aim of World Trade Organisation.
Answer:
The aim of World Trade Organisation is to liberalise international trade.

Question 9.
How has globalisation benefited the well-off sections in the urban areas?
Answer:
There is a greater choice before the well – off sections in the urban areas. They enjoy improved quality and lower prices for several products. They enjoy higher standards of living than was possible earlier.

Question 10.
Mention the facilities enjoyed by Special Economic Zones (SEZs).
Answer:
Special Economic Zones (SEZs) have world class facilities: electricity, water, roads, transport, storage, recreational and educational facilities. Companies which set up production units in the SEZs do not have to pay taxes for an initial period of five years.

Short Answer Type Questions

Question 1.
Discuss the factors that the MNCs look into when setting up a production plant in a particular location.
Answer:
MNCs have set up production where it is close to the markets where there is skilled and unskilled labour available at low costs  and where the availability of other factors of production is assured. In addition, MNCs might look for government policies that look after their interests. MNCs set up offices and factories for production in regions where they can get cheap labour and other resources. This is done so that the cost of production is low and the MNCs can earn greater profits.

Question 2.
Discuss the two-fold benefits of a local company when it sets up production jointly with an MNC.
Answer:
Sometimes, an MNC sets up production jointly with some of the local companies of a country. First, MNCs can provide money for additional investments, such as buying new machines for faster production. Secondly, MNCs might bring with them the latest technology for production.

Question 3.
The most common route for MNC investment is to buy up local companies and then to expand production. Explain it through the example of Cargill Foods.
Answer:

  1. Cargill Foods, a very large American MNC, has bought smaller Indian companies such as Parakh Foods.
  2. Parakh Foods had built a large marketing network in various parts of India, where its brand was well – reputed. Also, Parakh Foods had four oil refineries, whose control has now shifted to Cargill.
  3. Cargill is now the largest producer of edible oil in India, with a capacity to make 5 million pouches daily.

Question 4.
Besides MNCs buying up local companies, what is another way in which they control production?
Answer:

  1. Large MNCs in developed countries place orders for production with small producers.
  2. Garments, footwear, sports wear are examples of industries where production is carried out by a large number of small producers around the world.
  3. The products are supplied to MNCs, who then sell these under their o\yn brand names to the customers.
  4. These large MNCs have tremendous power to determine price, quality, delivery, and labour conditions for these distant producers.

Question 5.
How has production by MNCs across the globe in diverse locations got linked?’
Answer:
There are a variety of ways in which MNCs are spreading their production and interacting with local producers in various countries across the globe:

  1. By setting up partnerships with local companies, by using the local companies for supplies, by closely competing with the local companies or buying them up,
  2. MNCs are exerting a strong influence on production at these distant locations.
  3. As a result, production in these widely dispersed locations is getting interlinked.

Question 6.
Describe the problems faced by the workers because of globalisation and liberalisation.
Answer:

  1. For a large number of small producers and workers, globalisation has posed major challenges. Batteries, plastics, toys, vegetable oil, etc., are some examples of industries where the small manufacturers have been hit hard because of competition.
  2. Several of the units have shut down rendering many workers jobless.
  3. Globalisation and the pressure of competition have substantially changed the lives of workers. Most workers prefer to employ workers ‘flexibly’. Therefore, workers jobs are no longer secure.
  4. In most factories workers have to put in long hours and work night shifts on a regular basis during the peak season.

Question 7.
Why did the government introduce trade barriers after Independence?
Answer:
All developed countries, during the early stages of development, gave protection to domestic producers through a variety of means. The Indian government, after Independence, had put barriers to foreign trade and foreign investment. It was considered essential to protect the producers within the country from foreign competition. Industries were just coming up in the 1950s and 1960s, and competition from imports at that stage would not have allowed these industries to come up. Thus, India allowed imports of only essential items, such as machinery, fertilisers, petroleum, etc.

Question 8.
How has telecommunications stimulated the globalisation process?
Answer:

  1. Telecommunication facilities are used to contact one another around the world, to access information instantly, and to communicate from remote areas.
  2. Computers have now entered almost every field of activity.
  3. From the Internet, one may obtain and share information on almost anything one may want to know.
  4. It enables one to send instant e – mail and talk across the world at negligible costs. It has played a major role in spreading out production of services across countries.
  5. For example, a news magazine published for London readers may be designed and printed in an office in Delhi. After completion and submission of their work, they are paid by London office through Internet banking.

Question 9.
“Globalisation and competition among producers has been of advantage to the Cnsumers.” Give arguments in support of this statement.
Answer:
The following arguments support the given statement:

  1. There is greater choice available to the consumers in goods.
  2. The quality of goods has been improved.
  3. Prices of goods are lower.
  4. Consumers are now able to enjoy a better life.

Long Answer Type Questions

Question 1.
Explain how markets have transformed in the recent years with examples.
Answer:

  1. Until the middle of the twentieth ‘ century, production was largely organised within countries. What crossed the boundaries of these countries were raw materials, food stuff and finished products. Trade, was the main channel connecting distant countries.
  2. With the emergence of multinational corporations (MNCs), there has been a spread in production and interaction with local producers. Foreign trade has interlinked the markets.
  3. The producers are selling their produce not only in the domestic market but also in the markets located in other countries.
  4. Choices of goods in the markets have risen. With technology and liberalisation, the service sector has also grown.
  5. MNCs hire workers from developing countries to provide services to them at low rate.
  6. For example, the BPOs and KPOs employ thousands of young people to serve the multinational corporations.

Question 2.
The advantage of spreading out production across the borders to the multinationals can be truly immense. Justify.
Answer:
1. MNCs are not only selling their products globally but are also producing their goods globally.

2. The production process is divided into small parts and spread out across the globe.

3. For example, China provides the advantage of being a cheap manufacturing location. Mexico and Eastern Europe are useful for their closeness to the markets in the US and Europe. India has highly skilled engineers who can understand the technical aspects of production. The country has educated English speaking youth who can provide customer care services. This means 50 – 60 per cent cost savings for the MNC. Therefore, the advantage of spreading out production across the borders to the multinationals can be truly immense.

Question 3.
Discuss liberalisation of foreign trade.
Answer:

  1. Removing trade barriers or trade restrictions set by the government is known as liberalisation.
  2. The Indian government had initially introduced trade barriers after Independence to support the Indian producers from foreign competition.
  3. But in 1991, some far-reaching changes in policy were made in India. The government thought it was time for the producers to compete with foreign producers.
  4. It was felt that competition would improve the performance of producers within the country as they would have to improve the quality of the products.
  5. Barriers on foreign trade were lifted to a large extent. Goods could be imported and exported easily and also foreign companies could set up factories and offices in India.
  6. With liberalisation of trade, businesses were allowed to make decisions freely about what they wished to export or import.
  7. The government imposed much less restrictions than before and was therefore said to be more liberal.

Question 4.
What steps are the Central and State governments taking to attract foreign investment?
Answer:
The Central and State governments in India are taking special steps to attract foreign companies to invest in India:

  1. Industrial Zones, called Special Economic Zones (SEZs), are being set up.
  2. SEZs are to have world class facilities: electricity, water, roads, transport, storage, and recreational and educational facilities. Companies which set up production units in the SEZs do not have to pay taxes for an initial period of five years.
  3. Government has also allowed flexibility in the labour laws to attract foreign investment. It has allowed companies to ignofie many rules that aim to protect workers’ rights.
  4. The companies instead of hiring regular employees, can hire workers ‘flexibly’ for short periods when there is intense pressure of work and can be laid off later when there is less work. This reduces the cost of labour for the company.

Question 5.
How can government play a major role in creating a fair globalisation?
Answer:
Government can play a major role in creating a fair globalisation that would create opportunities for all, and also ensure that the benefits of globalisation are shared better.

  1. The policies of the government must protect the interests of not only the rich and the powerful, but all the people in the country.
  2. It needs to ensure that the labour laws are properly implemented and the workers get their rights.
  3. It can support small producers to improve their performance till they become strong enough to compete.
  4. If necessary, government can use trade and investment barriers.
  5. It can negotiate at the WTO for ‘fairer rules’.
  6. It can also align with other developing countries with similar interests to fight against the domination of developed countries in the WTO.

Activity Based Questions

Question 1.
Write one word answer for the following:
(a) It is a company that owns or controls production in more than one nation.
(b) It is the money that is spent to buy assets such as land, building, machines and other equipment.
(c) It is the investment made by MNCs.
(d) It is the process of rapid integration or interconnection between countries.
(e) It is the removing of trade barriers or trade restrictions set by the government.
Answer:
(a) MNC
(b) Investment
(c) Foreign investment
(d) Globalisation
(e) Liberalisation
(e) Liberalisation

Question 2.
Picture – study Study the picture carefully and answer the following questions:
JAC Class 10 Social Science Important Questions Economics Chapter 4 Globalisation and the Indian Economy 1
(a) Identity the sector of the organisation.
Answer:
This is a call centre or a BPO, equipped with telecom facilities and access to the Internet.

(b) What is the work of the people in this sector?
Answer:
In this sector, people are employed to provide information and support to customers abroad.

(c) In which countries is this sector found, and why?
Answer:
BPO or call centres are mainly found in developing countries. These employ huge number of young employees to work at low wages with long working hours. The workers are also required to work night shifts.

JAC Class 10 Social Science Important Questions

JAC Class 9 Science Notes Chapter 13 Why Do We Fall Ill

JAC Board Class 9th Science Chapter 13 Notes Why Do We Fall Ill

→ Health: Health is a state of being free from illness or injury. According to the World Health Organisation (WHO), health is defined as a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.

→ Conditions essential for Good Health:

  • Balanced and nutritious diet.
  • Personal hygiene.
  • Clean environment and surroundings.
  • Healthy and pollution free air in the surroundings.
  • Regular exercise.
  • Proper rest.
  • Good standard of living and economic status.

→ Disease: When the body is not at ease, i.e., comfortable, it is said to have a disease. In this condition, the functioning or appearance of one or more systems of the body changes. Depending on the duration, diseases are classified as acute or chronic.
a. Acute diseases: The diseases which last for a short duration of time are called acute diseases. Being of short duration, the acute diseases are unable to cause major ill effects on health, for example, common cold, malaria, typhoid, etc.

b. Chronic diseases: The diseases which last for a long duration of time or even for a lifetime are called chronic diseases. As these diseases remain in the body for a long time, their effects on the body are severe, e.g., diabetes, tuberculosis, etc.

JAC Class 9 Science Notes Chapter 13 Why Do We Fall Ill

→ Causes of a disease:
a. Immediate cause: The organisms that enter our body and cause diseases are called immediate causes, for example, virus, bacteria, protozoa, etc.

b. Contributory cause: The secondary factors which cause these organisms to enter our body are called contributory causes, e.g., dirty water, unclear surroundings, contaminated food, improper nourishment, poverty, poor standard of living, etc.

→ Diseases may be infectious or non- infectious
a. Infectious diseases: Diseases, where microbes are the immediate cause, are called infectious diseases. The infectious diseases spread from one person to another.
b. Non-infectious diseases: Some diseases that do not spread in the community but remain internal are called non-infectious diseases. Example: cancer, genetic abnormalities, high blood pressure, etc.

→ Infectious diseases: When a disease causing organism enters our body, it causes infection. It multiplies and grows in the body of the host.

Pathogen Diseases
Bacteria Tuberculosis, tetanus, typhoid, cholera
Virus AIDS, polio, chickenpox, rabies, measles
Fungi Skin diseases, food poisoning
Protozoan Malaria, amoebiasis, kala-azar
Worm Filariasis

→ Infectious diseases spread through:

  • Air: This occurs through the little droplets thrown out by the infected person who sneezes or coughs. Someone standing closeby can breathe in these droplets and the microbes get a chance to start a new infection. Examples: common cold, pneumonia, tuberculosis.
  • Water: This occurs if excreta of someone suffering from an infectious disease, such as cholera, gets mixed with the drinking water used by the people nearby. The cholera causing microbes will enter new hosts through the water they drink and cause disease in them.
  • Contact: Many diseases spread by contact of the infected person with the healthy person. Examples: fungal infection, scabies, etc. AIDS and syphilis spread by sexual contact.
  • Body fluids: Infected body fluids like blood, semen, mother’s milk etc., when in contact, can also cause diseases. Example-AIDS.

JAC Class 9 Science Notes Chapter 13 Why Do We Fall Ill

→ Antibiotics: Antibiotics are the drugs that kill bacteria. They commonly block the biochemical pathways important for bacteria. Many bacteria make a cell wall to protect themselves. The antibiotic penicillin blocks the bacterial processes that build the cell wall. As a result, the growing bacteria become unable to make cell walls and die easily.

→ Inflammation: When an active immune system releases many cells at the affected tissue to kill-off the disease-causing microbes, it is called inflammation. Local effects caused in the body due to inflammation are – swelling, pain, fever and redness.

→ Principles of Treatment: There are two methods for the treatment of diseases:
a. by reducing the symptoms of the diseases.
b. by killing the microbes.

→ Principles of Prevention: These are the ways to prevent the diseases.
a. General ways: The general ways of preventing infections mostly relate to preventing exposure to the diseases. We can prevent exposure to the infectious microbes as follows:

  • For air-borne infections: We can prevent exposure by providing living conditions that are not over crowded.
  • For water-borne infections: We can prevent exposure by using safe drinking water. This can be done by treating the water for any microbial contamination.
  • For vector-borne infections:

We can prevent exposure by providing clean environment which are free from mosquitoes, flies, rats, etc.
Another general way of preventing the diseases is the availability of proper and sufficient food for everyone. This will help the immune system to become healthy and work properly for fighting off the microbes causing the disease.

b. Specific ways: By giving vaccines, i.e., childhood immunisation that is given to the children for preventing infectious diseases. During vaccination, we put dead or weakened pathogens in the body that mimics antigens we want to vaccinate against. This does not actually cause the disease but this would prevent any further exposure to the infecting microbes from turning into actual disease. Vaccinations are available for the following diseases: tetanus, diphtheria, whooping cough, measles, polio, rabies, etc.

JAC Class 9 Science Notes

JAC Class 9 Science Notes Chapter 12 Sound

JAC Board Class 9th Science Chapter 12 Notes Sound

→ Sound: Sound is a form of energy which produces a sensation of hearing in our ears.

→ Production of Sound: Sound is produced due to the vibration of objects. Vibration is a periodic back-and-forth motion of the particles of an elastic body or medium about a central position. It is also called as oscillation.
For example:
a. Strings of a guitar vibrate to produce sound when stretched.
b. When membrane of a table is struck, it vibrates to produce sound.

JAC Class 9 Science Notes Chapter 12 Sound

→ Propagation of Sound
a. The travelling of sound is called propagation of sound. Sound is propagated by the to and fro motion of particles of the medium.

b. When an object vibrates, the particles in the medium vibrate. The particle in contact with the vibrating object is first displaced from its equilibrium position. Each particle disturbs the other particle in contact. Thus, the disturbance is carried from the source to the listener.
JAC Class 9 Science Notes Chapter 12 Sound 1
c. Only the disturbance produced by the vibrating body travels through the medium, but the particles do not move forward themselves. Sound waves cannot travel in vacuum.

→ Medium: The matter or substance through which sound is transmitted is called a medium. It can be solid, liquid or gas. Air is the most common medium for sound propagation.

→ Wave: Wave is a disturbance in which energy is transferred from one point to another without any direct contact between them.
For example: heat, light and sound are considered as waves.

→ Types of Waves
On the basis of direction of propagation, waves are categorised into two types:
a. Longitudinal waves: These are the waves in which the particles of the medium vibrate along the direction of propagation of the wave. For example: sound wave.
b. Transverse waves: In this type of wave, the particles of the medium vibrate in a direction perpendicular to the direction of propagation of the wave. For example: waves produced in a stretched string.

Another type of waves which do not require any medium for propagation are called electromagnetic waves. These waves can travel through vacuum. For example, light waves and X-rays.

→ Compressions and Rarefactions

  1. Compression is the part of wave in which particles of the medium are close to one another forming a region of high pressure and density. Compressions are represented by the upper portion of the curve called crest.
  2. Rarefaction is the part of wave where particles spread out to form a region of low pressure and density. Rarefactions are represented by the lower portion of the curve called trough.

JAC Class 9 Science Notes Chapter 12 Sound 2

→ Wavelength: Distance between two consecutive crests or troughs is called wavelength. Wavelength is represented by λ (lambda) and its SI unit is metre.

→ Frequency: Number of oscillations of a sound wave per unit time is called its frequency. The number of crests or troughs per unit of time will give the frequency. Its SI unit is hertz (Hz).

→ Time period: The time taken to complete one vibration is called time period. It is denoted by ‘T’. Its SI unit is second (s). The frequency of a wave is the reciprocal of the time period.
v = \(\frac{1}{\mathrm{~T}}\); where v is the frequency and T is the time period.

→ Amplitude: The magnitude ofthe maximum disturbance in the medium, on either side of the mean value, is called the amplitude of the wave. It is usually represented by the letter ‘A’. Its unit is metre.

JAC Class 9 Science Notes Chapter 12 Sound

→ Velocity: The distance travelled by a wave in one second is called velocity of the wave or speed of the wave. Its SI unit is metre per second (m s-1).
Velocity = \(\frac{\text { Distance travelled }}{\text { Time taken }}\)
v = \(\frac{\lambda}{\mathrm{T}}\), where λ = wavelength of the wave travelled and T is the time period.
v = λv (As \(\frac{1}{\mathrm{~T}}\) = v, where v is called frequency of the wave)
Thus, Velocity = Wavelength × Frequency
v = λv is called the wave equation.

→ Pitch and Loudness of Sound
a. Pitch: It represents shrillness or flatness of sound. It depends on the frequency of vibration. The higher the frequency of sound wave, the higher will be the pitch of sound and vice-versa.
b. Loudness: It is the measure of the sound energy reaching the ear per second. It depends on the amplitude of the sound wave. It is measured in decibel ‘dB’.

→ Music and Noise
a. Music: It is the sound that is pleasant to hear. For example, sound coming from the musical instruments.
b. Noise: It is the sound that is unpleasant to hear. For example, sound produced by vehicles.

→ Tone and Note
a. Tone: A pure sound of single frequency is called tone.
b. Note: An impure sound produced by a mixture of many frequencies is called a note. For example, a musical note has tones of various frequencies.

→ Audible Frequency: The audible range of human ear is 20 Hz to 20,000 Hz, i.e., human ear can hear only those waves whose frequencies fall between 20 Hz and 20,000 Hz.

→ Infrasonic sound: Sound whose frequency is less than 20 Hz is called infrasonic sound. Ultrasonic sound: Sound whose frequency is more than 20,000 Hz is called ultrasonic sound.

→ Uses of ultrasonic sound: Ultrasonic sound is used to clean objects like electronic components, to detect cracks in metal blocks, in ultrasound scanners for getting images of internal organs of the human body, to break small stones formed in the kidneys into fine grains, etc.

→ Reflection of Sound: Sound reflects off a surface in the same way as light reflects and follows the same rules of reflection. Hard surfaces reflect sound better than the soft ones.

JAC Class 9 Science Notes Chapter 12 Sound

→ Laws of reflection of sound

  • The directions in which the sound is incident and reflected make equal angles with the normal to the reflecting surface at the point of incidence.
  • The incident sound wave, the reflected sound wave and the normal all, lie in the same plane.
  • The reflection of sound has many applications such as stethoscopes, horns, megaphones, designing of concert halls, etc.

→ Echo: In bigger monuments and in large empty halls, you can hear reflections of your sound after you speak something. This effect is known as echo. For hearing a distinct echo, the time interval between the original sound and the reflected one must be at least 0.1 s.

Since the speed of sound in air is 344 m/s, the distance travelled by sound in 0.1 s is 34.4 m. So, to hear an echo clearly and distinctly, the minimum distance of the reflecting surface from the source of sound should be half of this distance, i.e., 17.2 m.

→ Reverberation: The persistence of sound in an auditorium as a result of repeated reflections of sound is called reverberation.

→ Sonar: It is a device which uses ultrasonic waves to measure the distance, direction and speed of underwater objects. The distance of the object can be calculated by knowing the speed of sound in water and the time taken between the transmission and reception of ultrasound.
JAC Class 9 Science Notes Chapter 12 Sound 3

→ Structure of the human ear: The sound waves pass through the ear canal onto a thin membrane called eardrum. The eardrum vibrates and the vibrations are amplified by the three bones of the middle ear called malleus, incus and stapes. Middle ear then transmits the sound waves to the inner ear. The brain then interprets the signals as sound.
JAC Class 9 Science Notes Chapter 12 Sound 4

→ Supersonic speed: When a body moves in air with a speed greater than the speed of sound, it is said to have a supersonic speed.

→ Shock wave: When a supersonic aircraft moves through air, it leaves behind itself a conical region of disturbance which spreads continuously. Such a disturbance is called a shock wave. Shock waves travel at supersonic speeds and carry a huge amount of energy.

JAC Class 9 Science Notes

JAC Class 9 Science Notes Chapter 11 Work and Energy

JAC Board Class 9th Science Chapter 11 Notes Work and Energy

→ Work: When a force acts upon an object to cause a change in its position, work is said to be done. It is expressed as the product of force and displacement in the direction of force.
W = F × s
Here, W = work done on the object
F = force on the object
s = displacement of the object
The SI unit of work is newton metre (N m) or joule (J).
1 joule is defined as the amount of work done by a force of 1 N to cause a displacement of 1 m in the object.

JAC Class 9 Science Notes Chapter 11 Work and Energy

→ Sign Conventions for Work Done
a. When both force and displacement are in the same direction, work done is positive.
W = (F × S)

b. When force acts in a direction opposite to the direction of displacement, the work done is negative.
W = – (F × S)
Angle between force and displacement is 180°.

c. If force and displacement are inclined at an angle less than 180°, the work done is given by:
W = Fs cos θ
where θ is the angle between force and displacement.

d. If force and displacement act at an angle of 90°, the work done is zero.

→ Necessary Conditions for Work to be done
Two conditions are required for the work to be done:
a. A force should act on the object.
b. Object must be displaced.

→ Energy: The capacity of a body to do work is called energy of the body. It is a scalar quantity.

→ Unit of energy: As energy is measured by the amount of work that a body can do, so the unit of energy is same as that of work. The SI unit of energy is joule (J). One joule of energy is the energy required to do 1 J of work.
1 kilojoule = 1 kJ = 1000 J.

→ Forms of energy: The various forms of energy are potential energy, kinetic energy, heat energy, chemical energy, electrical energy and light energy.

→ Kinetic energy: It is the energy possessed by a body by the virtue of its motion. Kinetic energy of an object increases with its speed. Kinetic energy of a body moving with a certain velocity is equal to the work done on it to make it acquire that velocity.

→ Derivation
Let an object of mass’m’, start from rest and attain a uniform velocity ‘v’, after a force ‘F’ is applied on it.
Let, during this period, the object be displaced by a distance ‘s’.
Thus, work done on the object,
W = F × S …(i)

Let the acceleration produced after applying force on the object be ‘a’.
So, using third equation of motion, we have:
v2 – u2 = 2as ……….(ii)

Substituting F and s from equations (ii) and (iii) in equation (i), we get:
W = F × s
W = ma × \(\frac{v^{2}-u^{2}}{2 a}\)
W = \(\frac{1}{2}\)mv2 [As, initial velocity, u = 0]
∴ KE = \(\frac{1}{2}\)mv2
[Work done is stored as kinetic energy]

JAC Class 9 Science Notes Chapter 11 Work and Energy

→ Potential energy: The energy possessed by a body due to its position, shape or configuration is called its potential energy.

→ Gravitational potential energy (PE): The gravitational potential energy (PE) of an object at a point above the ground is defined as the work done in raising it from the ground to that point, against gravity.
JAC Class 9 Science Notes Chapter 11 Work and Energy 1

→ Derivation:
Consider a body of mass m, raised through a height ‘h’ from the ground.
Force required to raise the object = weight of the object = mg.
Object gains energy equal to the work done on it.
Work done on the object against gravity is ‘W’.
W = force × displacement = mg × h
W = mgh
PE = mgh
[Work done is stored as potential energy]

→ Mechanical energy:
The sum of kinetic energy and potential energy is called mechanical energy.

→ Law of Conservation of Energy:
It states that energy can neither be created nor destroyed, but it can be transformed from one form to another. The total energy before and after the transformation always remains constant in an isolated system.
JAC Class 9 Science Notes Chapter 11 Work and Energy 2
Potential energy + Kinetic energy = Constant (Mechanical energy)
Consider a body of mass ‘m’, raised to a height ‘h’ as shown in the figure. At A, its potential energy is maximum and kinetic energy is 0 as it is stationary.

When body falls at B, ‘h’ is decreasing, hence potential energy decreases. Also, v is increasing, therefore, kinetic energy is increasing.
When the body is about to reach the ground level, h = 0 and ‘v’ will be maximum. Hence, kinetic energy > potential energy.
This shows that decrease in potential energy = increase in kinetic energy.
Thus, there is a continuous transformation of gravitational potential energy into kinetic energy.

JAC Class 9 Science Notes Chapter 11 Work and Energy

→ Power: The rate of doing work is called power.
Power = \(\frac{\text { Work }}{\text { Time }}\) or P = \(\frac{\mathrm{W}}{\mathrm{t}}\)
Work, power and energy are all scalar quantities.

→ Watt: It is the SI unit of power. The power of an agent is one watt if it does work at the rate of 1 joule per second.
1 watt = \(\frac{1 \text { joule }}{1 \text { second }}\) or 1 W = 1 J s-1
1 kilowatt = 1000 watt or 1 kW = 1000 W
1 horsepower = 746 watt or 1 H.P. = 746 W

→ Kilowatt-hour (kWh): It is the commercial unit of electric energy. It is defined as the electric energy consumed by an appliance of power 1000 watt in one hour.
1 kWh = 3.6 × 106 J

JAC Class 9 Science Notes

JAC Class 9 Science Notes Chapter 10 Gravitation

JAC Board Class 9th Science Chapter 10 Notes Gravitation

→ Gravitation:
The universal law of gravitation’ states that any two bodies having mass, attract each other with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. The force acts along the line joining the centres of the objects.
JAC Class 9 Science Notes Chapter 10 Gravitation 1
Here, G is universal gravitational constant with a value of 6.673 × 10-11 N m2 kg2. The value of G was found out by Henry Cavendish.

Note:

  • If mass of an object is large, force will be more. If mass of an object is small, force will be less.
  • If distance between two objects is more, force exerted will be less and vice versa.

JAC Class 9 Science Notes Chapter 10 Gravitation

→ Importance of Gravitational Force

  • It binds us to the earth.
  • Moon revolves around the earth due to gravitational force. Planets revolve around the sun due to gravitational force.
  • Tides in oceans are caused due to gravitational force of the moon on earth.

→ Centripetal acceleration of the moon:
If the moon is revolving with speed v in a circular orbit of radius r, then the acceleration acting on it along the radius and towards the centre of its orbit is
ac = \(\frac{\mathrm{v}^{2}}{\mathrm{r}}\)

→ Free fall: The earth attracts objects towards it due to gravitational force. When an object moves under the influence of gravitational force alone, it is said to be in a ‘free fall’.

→ Acceleration due to gravity: The acceleration produced in the bodies due to earth’s gravity is called acceleration due to gravity. Its value on the earth’s surface is 9.8 m/s2.

→ Relations between g and G: If M is the mass of the earth and R is its radius, the acceleration due to gravity at the surface of the earth is given by
g = \(\frac{\mathrm{GM}}{(\mathrm{R})^{2}}\)

The value of g depends on:

  • shape of the earth
  • height above the earth
  • depth inside the earth
  • latitude on the earth

→ Mass of the earth:
It is given by
M = \(\frac{g^{2}}{G}\)

→ Centre of mass:
The centre of mass of a body may be defined as the point at which whole mass of the body may be assumed to be concentrated.

→ Centre of gravity:
The centre of gravity of a body is a point at which the resultant of all the parallel forces due to gravity, experienced by various particles of the body, acts or at which whole weight of the body acts.

→ Equations of motion for freely falling bodies: The three equations of motion are:
v = u + at ……..(ii)
s = ut + \(\frac{1}{2}\) at2 …..(ii)
v2 – u2 = 2as
For free fall, the value of acceleration (a)
= g = 9.8 ms-2

→ Projectile: Any object thrown into space with some initial velocity and which thereafter moves under the influence of gravity alone is called a ‘projectile’. The path of a projectile is a parabola. Its horizontal range is maximum when the angle of projection is 45°.

JAC Class 9 Science Notes Chapter 10 Gravitation

→ Mass: Mass of an object is the measure of its inertia. It is the amount of matter present in it. It remains the same everywhere in the universe.

→ Weight: The force with which an object is attracted towards the centre of the earth is known as the weight of that object. Its SI unit is newton.
W = m × g
where W = weight of the object, m = mass of the object, and g = acceleration due to gravity.
The weight of an object can change from one place to the other and from one planet to the other.

→ Thrust: It is the net force applied in a particular direction. Its SI unit is N.
Pressure = \(\frac{\text { Thrust }}{\text { Area }}\)
The SI unit of density is kg/m3.

→ Relative density: It is the ratio of the density of a substance to the density of water at 4°C.
Density of substance Density of water at 4°C
Since relative density is a pure ratio, it has no units.

→ Pressure in fluids:
All liquids and gases are fluids as they can flow. The pressure exerted by a fluid is transmitted in all directions.

→ Buoyancy:
The upward force exerted by water (fluid) on the body immersed in it is known as upthrust or buoyancy. The magnitude of the buoyant force depends of the density of the fluid.

→ Archimedes’ principle: It states that when a body is immersed fully or partially in a fluid, it experiences an upward force that is equal to the weight of the fluid displaced by it.
It has following applications:

  • Used in designing ships and submarines.
  • In lactometers to find purity of milk.
  • In hydrometers to determine the density of a liquid.

JAC Class 9 Science Notes Chapter 10 Gravitation

→ Density: The density of a substance is its mass per unit volume.
Density = \(\frac{\text { Mass }}{\text { Volume }}\)
The SI unit of density is kg/m3.

→ Relative density: It is the ratio of the density of a substance to the density of water at 4°C.
Density of substance Density of water at 4°C
Since relative density is a pure ratio, it has no units.

JAC Class 9 Science Notes