Answer: Snell law of refraction states that the incident ray, the refracted ray, and the normal at the plane of incidence, all lie in the same plane.
Explanation:
Snell's laws of refraction are :
1. The incident ray, the refracted ray, and the normal at the point of incidence, all share the same plane.
2. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant for the pair of given media.
This law is also known as the 2 law of refraction of light.