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Tuesday, February 5, 2013

PHYSICAL WORLD


Physics
JR INTER VERY SHORT ANSWER QUESTIONS

PHYSICAL WORLD
1)    What is physics?
Physics is the study of the basic laws of nature and their manifestations in various natural phenomena.

2)  What is the discovery of C.V.Raman?
C.V.Raman discovered Raman Effect which deals with inelastic scattering of light by molecules.

3)  What are the fundamental forces in nature?
The fundamental forces in nature are
Ø  Gravitational force
Ø  Electromagnetic force
Ø  Strong nuclear force
Ø  Weak nuclear force

4)  Which of the following has symmetry a) Acceleration due to gravity    b) Law of gravitation?
Law of gravitation has symmetry, because it is same at any place in the universe.

5)  What is the contribution of S.Chandra Sekhar to physics?
Concept of Chandra Sekhar limit for white dwarfs.