Question

A light ray is incident on a plane mirror with ${30}^o$ angle of incidence. What will be the angle of reflection?

Answer 1

Given,

Angle of incidence, $i={30}^{\circ }$

According to laws of reflection, the angle of incidence $i$ is equal to the angle of reflection $r$.

$i=r$

$⟹r={30}^{\circ }$