Question

A beam of light is partially reflected and partially refracted from a surface. The angle between reflected and refracted light ray is 90^(@). If the angle of refraction is 30^(@), the angle of incidence is

Answer 1

Answer:

i=60°

Explanation:

Since they all lie in same plane,

i+r+90°=180°

i+30°+90°=180°

i=60°