Question

If a ray of light incident on a plane mirror is such that it makes an angle of ${30}^{\circ }$ with the mirror, then the angle of reflection is

• A. ${30}^{\circ }$
• B. ${45}^{\circ }$
• C. ${55}^{\circ }$
• D. ${60}^{\circ }$

Answer 1

The correct option is D ${60}^{\circ }$

If angle with the mirror = ${30}^o$ then angle with the normal = ${90}^o-{30}^o$ = 60${}^o$

hence ans. is D