Question

state the two laws of refraction of light. write also the mathematical form of the second law.

Answer 1

The answer is in the pic.

Hope it helps you!

Answer 2

The Laws of Refraction with Examples

 

The Laws of Refraction

Incident ray, reflected ray, refracted ray and the normal of the system lie in the same plane.Incident ray, coming from one medium to the boundary of another medium, is refracted with a rule derived from a physicist Willebrord Snellius. He found that there is a constant relation between the angle of incident ray and angle of refracted ray. This constant is the refractive index of second medium relative to the first medium. He gives the final form of this equation like;