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Physics Class 11 Question Answer Chapter 12 Kinetic Theory CBSE

12.1 Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3 Å. Solution : Diameter of an oxygen molecule, d = 3Å Radius, r = d/2 = 3/2 = 1.5 Å = 1.5 × 10–8 cm Actual volume occupied by […]

Physics Class 11 Question Answer Chapter 11 Thermodynamics CBSE

11.1 A geyser heats water flowing at the rate of 3.0 litres per minute from 27 °C to 77 °C. If the geyser operates on a gas burner, what is the rate of consumption of the fuel if its heat of combustion is 4.0 × 104 J/g? Solution : Water is flowing at a rate of […]

Physics Class 11 Question Answer Chapter 10 Thermal Properties of Matter CBSE

10.1 The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express these temperatures on the Celsius and Fahrenheit scales. Solution : Kelvin and Celsius scales are related as: TC = TK – 273.15 … (i) Celsius and Fahrenheit scales are related as: TF = (9/5)TC + 32   ….(ii) For neon: TK = 24.57 K […]

Physics Class 11 Question Answer Chapter 8 Mechanical Properties of Solids CBSE

8.1 8.2 Figure 8.9 shows the strain-stress curve for a given material. What are (a) Young’s modulus and (b) approximate yield strength for this material? Answer :  8.3 The stress-strain graphs for materials A and B are shown in Fig. 8.10. (a) Which of the materials has the greater Young’s modulus? (b) Which of the […]

Biology Class 11 Question Answer Chapter 19 Chemical Coordination & Integration CBSE

Q1. Define the following: (a) Exocrine gland Exocrine glands are glands that have ducts and secrete their products onto an epithelial surface or into body cavities. Examples include salivary glands, sweat glands, and sebaceous glands. (b) Endocrine gland Endocrine glands are ductless glands that release hormones directly into the bloodstream, which then travel to target […]

Biology Class 11 Question Answer Chapter 18 Neural Control and Coordination CBSE

Q1. Briefly describe the structure of the brain. Answer :  The brain is the central information-processing organ of the body, protected by the skull and cranial meninges (dura mater, arachnoid, and pia mater). It has three major parts: 1. Forebrain The forebrain is the largest and most complex part of the brain, consisting of the […]

Sociology Important Questions Chapter 6 Class 12 Social Change & Development in India

Globalisation and Social Change Short Questions with answers 1. What does globalisation mean? Answer :  Growing connections between countries worldwide. 2. When did India remove all import restrictions? Answer :  On April 1, 2001. 3. What is liberalisation? Answer :  Opening up the economy to global markets. 4. What does WTO stand for? Answer :  […]

Sociology Important Questions Chapter 5 Class 12 Social Change & Development in India

Change and Development in Industrial Society Short Questions with answers 1. What is industrialisation? Answer :  It is the shift to machine-based production and urban workplaces. 2. What is alienation according to Marx? Answer :  Alienation is the loss of connection between workers and their work. 3. What does the term “division of labor” mean? […]

Sociology Important Questions Chapter 2 Class 12 Social Change & Development in India

Cultural Change Short Questions with answers 1. What does cultural change mean in sociology? Answer :  It refers to changes in norms, values, and behaviors in society. 2. What are the four processes of cultural change? Answer :  Sanskritisation, modernisation, secularisation, and westernisation. 3. What is Sanskritisation? Answer :  The adoption of higher caste customs […]

Sociology Important Questions Chapter 1 Class 12 Social Change & Development in India

Structural Change Short Questions with answers 1. What does colonialism mean? Answer : Colonialism means rule by one country over another to exploit its resources. 2. How is British colonialism unique? Answer : It deeply changed India’s political, economic, and social systems. 3. What did colonialism promote in India? Answer : It promoted British capitalism […]

Sociology Important Questions Class 12 Social Change & Development in India

Chapter 1 – Structural Change Chapter 2 – Cultural Change Chapter 3 – The Story of Indian Democracy Chapter 4 – Change and Development in Rural Society Chapter 5 – Change and Development in Industrial Society Chapter 6 – Globalisation and Social Change Chapter 7 – Mass Media and Communications Chapter 8 – Social Movements

Sociology Important Questions Chapter 6 Class 12 Indian Society CBSE

The Challenges of Cultural Diversity Short Questions with answers 1. What does cultural diversity emphasize? Answer : It emphasizes differences rather than inequalities. 2. What defines community identity? Answer : It is based on birth and belonging. 3. What does the term ‘ascriptive identity’ mean? Answer : It refers to identities determined by birth. 4. […]

Sociology Important Questions Chapter 5 Class 12 Indian Society CBSE

Patterns of Social Inequality and Exclusion Short Questions with answers 1. What is social inequality? Answer : Social inequality means unequal access to resources, opportunities, and power. 2. What is social exclusion? Answer : Social exclusion is when individuals or groups are kept out of society’s benefits. 3. What are the three forms of capital? […]

Sociology Important Questions Chapter 4 Class 12 Indian Society CBSE

The Market as a Social Institution Short Questions with answers 1. What is a market? Answer : A market is a place or system where goods and services are exchanged. 2. What is meant by the “invisible hand”? Answer : It refers to the self-regulating nature of markets as described by Adam Smith. 3. What […]

Sociology Important Questions Chapter 3 Class 12 Indian Society CBSE

Social Institutions: Continuity and Change Short Questions with answers 1. What are the three key social institutions discussed in this chapter? Answer : Caste, tribe, and family. 2. What is the origin of the word ‘caste’? Answer : It comes from the Portuguese word casta, meaning pure breed. 3. What does the term ‘varna’ mean? […]

Sociology Important Questions Chapter 2 Class 12 Indian Society CBSE

The Demographic Structure of the Indian Society Short Questions with answers 1. What is demography? Answer : Demography is the study of population size, structure, and changes. 2. What does “demos” mean in Greek? Answer : “Demos” means people. 3. What is the focus of formal demography? Answer : Formal demography focuses on quantitative analysis […]

Sociology Important Questions Class 12 Indian Society CBSE

Chapter 1 – Introducing Indian Society Chapter 2 – The Demographic Structure of the Indian Society Chapter 3 – Social Institutions: Continuity and Change Chapter 4 – The Market as a Social Institution Chapter 5 – Patterns of Social Inequality and Exclusion Chapter 6 – The Challenges of Cultural Diversity

Sociology Important Questions Chapter 1 Class 12 Indian Society CBSE

Introducing Indian Society Short Questions with answers 1. What does sociology primarily study? Answer : Sociology studies society and social relationships. 2. Why does no one start from zero in sociology? Answer : Everyone already has some knowledge about society. 3. What is the main challenge in learning sociology? Answer : The challenge is to […]