Question

state the laws of refraction

Answer 1

the incidence ray ,normal and refracted ray all lies in same plane the ratio of sin of angle and sin of angle of refraction is equal to the constant

Answer 2

1}the incident ray,the refracted ray and the normal ray at the point of incidence all lie in the same plan.

2} the ratio of the sine of the angle of incidence to the sine of of the angle of refraction r is constant for the pair of given media