Question

A ray of light which is incident in air on the surface of glass is deviated through 15°. The angle of incidence in air is 60°. what is the angle of refraction in glass? Also calculate the critical angle of glass air interface.​

Answer 1

Answer:

Explanation: HERE THE LIGHT IS DEVIATED AT 15 DEGREEE

THEN ANGLE OF INCIDENCE =60

THEN ANGLE OF REFRACTION IS = 60+15 = 75

CRITICAL ANGLE IS = 75/60=5/4`