Question

State huygens principle using it prove laws of refraction and reflection

Answer 1

Answer:

Fermat's Principle

Thus AC = A'C and the distance traveled by the ray of light from A to B via C is the same distance from A' to B via C. ... Also note that to maintain A'DB as a single straight line, the reflected ray must remain within the plane of incidence. We can also prove the law of refraction.

Refraction using Huygen's principle So the laws of refraction state that the angle of incidence is the angle between the incident ray and the normal and the angle of refraction is the angle between the refracted ray and the normal. ... As these rays are incident from the surface, so we call it incident ray.