Ques. No 1(a) Can a converging lens be made todiverge light if it is placed into a liquid? What If? How about aconverging mirror?
(b) (i) Give an example where no heat istransferred to or from a system but the temperature of the systemchanges.
(ii) Why is itwrong to think of heat as a form of stored energy?
(c) A electron is moving with a speed of 0.85c ina direction opposite to that of a moving photon. Calculate therelative velocity of the photon with respect to the electron.
(d) Calculate the K.E of an electron moving with avelocity of 0.98 times the velocity of light in the laboratorysystem.
(e) At what speed is a particle moving if the massis equal to three times its rest mass?