Question

Two laws of refraction of light?

Answer 1

The incident ray,the refracted ray and the normal at the point of incidence all lie in the same plane

Sini/Sinr = a constant

Answer 2

1) The incident ray and the ray are on the opposite side of the normal to the surface at the point of incidence and all the three i.e.,the incident ray , refracted ray and the normal are the sample plane.

2) For a given pair of media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant this constant called refractive index of second medium to first median.

Hope its corret answer