Question

If a ray of light is incident normally on a surface, then

• A. Angle of incidence $=$ infinity
• B. Angle of reflection $=$ infinity
• C. Angle of incidence $={90}^{\circ }$
• D. Angle of incidence $=0^{\circ }$

Answer 1

The correct option is D Angle of incidence $=0^{\circ }$

Angle of incidence is the angle between incident ray and normal to the reflecting surface at point of incidence.

Hence, when ray of light is incident normally on the surface, angle of incidence=$0^o$

Answer-(D).