A beam of light travelling in air is incident upon a glass block. If the angle of refraction is 30°, the angle

Question

A beam of light travelling in air is incident upon a glass block. If the angle of refraction is 30°, the angle of incidence would be

a. 0°

b. between 0° and 30°

c. between 30° and 90°

d. 90

explain?

Answer 1

b.  when light goes from one medium to another with a higher index of refraction, it will bend towards the normal line, therefore it will be less than 30°