Question

For the same angle of incidence in media A, and C , the angles of refraction are 20°, 30°, and 40° respectively. In which medium will the velocity of light be maximum ? Give reason in support of your answer.

Answer 1

Speed of light in a medium is inversely proportional to the refractive indx of the medium.

Since lesser the refraction angle, higher the refractive index, thus the speed of light is minimum in the last medium.