Question

8. A light ray is incident normally on a plane mirror.
(a) What is its angle of incidence ?
(b) What is the direction of reflected ray ? Show it on
a diagram.​

Answer 1

Answer:

When the light ray is incident normally on the plane mirror then by using laws of reflection angle of incidence is equal to angle of reflection. Hence, as the angle of incidence is zero degree angle of reflection is zero degree. Thus, reflected ray will reflect back in same path as that of incident ray.