Question

Two mirrors A and B are placed at right angles to each other as shown in figure. A ray of light incident on mirror A at an angle of ${25}^{\circ }$ falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be :

• A. ${25}^{\circ }$
• B. ${50}^{\circ }$
• C. ${65}^{\circ }$
• D. ${115}^{\circ }$

Answer 1

The correct option is C ${65}^{\circ }$

On plotting the ray diagram, we get by geometry the angle of reflection for the ray reflected from mirror B = ${65}^o$.