Question

For the same angle of incidence in media A,B and C, the angles of refraction are 20 degree30 degree and 40 degree respectively. In which medium will the velocity of light be maximum? Give reason in support of your answer.

Answer 1

because it is less than 40

Answer 2

From Snell’s law

n = sin i /sin r = c/v

Since c and sin i are constant therefore sin r is directly proportional to v

Therefore velocity of light is maximum in medium C.

Glad To Help :D