PHYSICAL WORLD

Very Short Question Answers

Q1. What is physics?

Ans.

The study of the basic laws of the nature and their manifestation in different natural phenomena is defined as physics.


Q2. What is the discovery of C.V. Raman?

Ans.

Raman effect : Inelastic scattering in molecules.


Q3. What are the fundamental forces in Nature?

Ans.

The fundamental forces in nature are 1) Gravitational force 2) Electromagnetic force 3) Weak nuclear force 4) Strong nuclear force


Q4. Which of the following has Symmetry?(a) Acceleration due to Gravity(b) Law of Gravitation

Ans.

Law of gravitation has symmetry.


Q5. What is the contribution of S. Chandrasekhar to Physics?

Ans.

Chandra Sekhar limit, Structure and evolution of stars.