Question

State Huygens' principle of propagation of light
and explain refraction of light on the basis of
wave theory of light.​

Answer 1

According to the Huygens principle, each point on a wavefront acts as a secondary source of light producing secondary wavelets in all directions. The secondary wavelets are effective only in the direction of wave normal. Therefore, a backward wavefront is absent.

Answer 2

Answer:

hope this will help you