Question

What will be an angle of reflection if a ray of light strikes the mirror normally?

• A. ${180}^{\circ }$
• B. ${90}^{\circ }$
• C. $0^{\circ }$
• D. ${360}^{\circ }$

Answer 1

The correct option is C $0^{\circ }$

For normal incidence,
Angle of incidence = $0^{\circ }$
From $2^{nd}$ law of reflection,
Angle of reflection = Angle of incidence
Therefore, here the angle of reflection = $0^{\circ }$