Question

Justify your answer for following statements

(a) All rays incident on mirror subtend same angle of incidence.

(b) Rays parallel to principal axis incident on concave mirror ,after reflection can pass through pole.​

Answer 1

Answer

When a ray is incident on a spherical mirror through the centre of curvature, it is incident normally on the surface. As a result, it is reflected normally and the reflected ray retraces the path of incidence in opposite direction