Question

write down the regions law of wave propagation on that basis explain the phenomenon of refraction and deduce snell's law?​

Answer 1

Answer:

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.