Question

A light ray is incident normally on a plane mirror. The angle of reflection will be

• A. $135^{\circ }$
• B. $90^{\circ }$
• C. $45^{\circ }$
• D. $0^{\circ }$

Answer 1

Answer: (D)

Normally incident ray returns back through same path as shown
$\therefore$ Angle of reflection = Angle of incidence $=0^{\circ }$