Study Material
PHYSICAL WORLD
Very Short Answer Questions
Q1. What is physics?
Answer
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?
Answer
Ans. Raman effect : inelastic scattering of light by molecules
Q3. What are the fundamental forces in Nature?
Answer
Ans. The fundamental forces in nature are
- Gravitational force
- Electromagnetic force
- Weak nuclear force
- Strong nuclear force
Q4. Which of the following has Symmetry?(a) Acceleration due to Gravity(b) Law of Gravitation
Answer
Ans. Law of gravitation has symmetry.
Q5. What is the contribution of S. Chandrasekhar to Physics?
Answer
Ans. Chandra Sekhar limit, Structure and evolution of stars.