Question

For the same angle of incidence in media A,B and C the angle of refraction is 20°, 30° and 40° respectively. In which medium will the velocity of light be maximum? Explain your answer in brief.​

Answer 1

We know that the ratio of sine of angle of incidence to the sine of refraction gives refractive index.increase in refractive index increases the range of bending.here angle of incidence is same in every case.the angle of refraction is greater in c.so,it has less refractive index and hence light suffer less bending,which increases its speed.

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