Question

A ray of light is incident at an angle of ${35}^{\circ }$ on a plane mirror. What is angle $\theta$ ?

• A. ${35}^{\circ }$
• B. ${45}^{\circ }$
• C. ${55}^{\circ }$
• D. ${65}^{\circ }$

Answer 1

The correct option is A ${35}^{\circ }$

angle of reflection = angle of incidence

$\Rightarrow$ ${90}^{\circ }$ - angle of reflection = ${90}^{\circ }$ - angle of incidence