Question

A plane mirror makes an angle of ${30}^{\circ }$ with horizontal. If a vertical ray strikes the mirror, find the angle between mirror and reflected rayA plane mirror makes an angle of ${30}^{\circ }$ with horizontal. If a vertical ray strikes the mirror, find the angle between mirror and reflected ray

• A. ${30}^{\circ }$
• B. ${45}^{\circ }$
• C. ${60}^{\circ }$
• D. ${90}^{\circ }$

Answer 1

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

Since angle between mirror and normal is ${90}^{\circ }$ and reflected ray (RR) makes an angle of ${30}^{\circ }$ with the normal so required angle will be $\theta ={60}^{\circ }$.