Question

what difference between incident ray and refracted ray

Answer 1

incident ray is that ray which goes to the mirror and reflected ray is that ray which comes back from the mirror.

Answer 2

~The reflected ray corresponding to a given incident ray, is the ray that represents the light reflected by the surface. The angle between the surface normal and the reflected ray is known as the angle of reflection. 

~An incident ray is a ray of light that strikes a surface. The angle between this ray and the perpendicular or normal to the surface is the angle of incidence.