Question

Hello I have a doubt in physics can you please calrify? A light ray falls on a mirror and deviates by 30∘, then the angle of incidence will be:

Answer 1

Explanation:

angle of deviation is measured between the angle of incidence and the normal

if the angle of deviation =30 degrees

then, angle of incidence is

90°= i°+30°

i° = 90-30

i°=60°