Question

3. Incident ray and relleu
Retraction of light on the basis of Huygen's wave theory
ful surface​

Answer 1

Explanation:

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. The incident ray, reflected ray and the normal, to the interface of any two given mediums all lie in the same plane.