- What do you understand by inertial and non inertial frames of references? Give examples.

- What do you understand by concept of frame of reference ?

- Explain, Earth is not an inertial frame.

- What are Galilean transformation equations? Derive them.

- State the conclusion of Michelson-Morley experiment.

- Draw neat and clean diagram of Michelson-Morley experiment set up and discuss its working.

- what are the postulate of special theory of relativity?

- What are Lorentz’s transformation? Derive them.

- Derive an expression for variation of mass with velocity.

- What do you understand by famous universal relation of mass energy equivalence?

- Write short notes

(i) Relativistics addition of velocities

(ii) Mass energy equivalence

(iii) Time dilation

(iv) Length contraction.

- A body of mass m is moving with velocity v. Find m where m0 is rest mass of (1 –v2) body and c is speed of light. c2 ·

- What is proper length? Explain how Lorentz’s transformation account for the phenomenon of length contraction.

- Describe the Michelson-Morley experiment and explain the physical significance of negative result.

- Deduce an expression for the variation of mass with velocity and depict it graphically. Also prove that no material particle can have a velocity equal or greater than the velocity of light.