NCERT Solutions for Class 12 Sociology Chapter 3 Social Institutions: Continuity and Change NCERT TEXTBOOK QUESTIONS SOLVED 1. What is the role of the ideas of separation and hierarchy in the caste system?Ans. The caste system can be understood as the combination of two sets of principles, one based on difference and separation and the other on wholism and hierarchy.Each … Read more
NCERT Solutions for Class 12 Sociology Chapter 2 The Demographic Structure of the Indian Society NCERT TEXTBOOK QUESTIONS SOLVED 1.Explain the basic argument of the theory of the demographic transition. Why is the transition period associated with a ‘population explosion’?Ans. Theory of demographic transition suggests that population growth in linked to overall levels of economic development … Read more
NCERT Solutions for Class 12 Sociology Chapter 1 Introducing Indian Society NCERT TEXTBOOK QUESTIONS SOLVED 1.What are the main problems of national integration in India?Ans. The problems of India are linguistic identity, regionalism, demand for separate states and terrorism etc. create hindrances in the way of national integration. Due to these . problems, usually strikes, riots … Read more
Amplitude of Sound Frequency of Sound It is maximum displacement of a vibrating object from its central location Number of Vibrations made in one second is called frequency of sound It determines size of waves It measures number of waves per second It is measured in metre. It is measured in Hertz It measures how … Read more
Here are some examples of energy transformations taking place in our daily life Electric Motors This is used in different appliances like fans, refrigerators etc Here Electrical energy is converted into Kinetic Energy Electrical Energy → Kinetic Enrgy Electric Generator It is used to generate electricity Here, Mechanical Energy is converted into electrical energy Mechanical … Read more