Question

State the two conditions under which the path of a ray of light will deviate?

Answer 1

Two conditions under which the path of a ray of light will deviate are:

1. The path of a ray of light will deviate if the refractive index of the two mediums is different.
2. The path of a ray of light will deviate if the ray of light falls at an angle to the normal drawn at the interface of the two mediums, i.e. ray should not fall perpendicular to the interface surface.