Question

A ray of light is incident on a plane mirror at an angle of 30 degree state the angle of reflection?​

Answer 1

Answer:

30°

Explanation:

The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.

∠i = ∠r

so as ∠i = 30°

∠r will also be 30°