Question

A ray of light travelling through air falls on the surface of a glass slab and emerges out of it parallel to the incident ray. The angle of incidence is i, angle of refraction in glass is 'r' and angle of emergence is 'e'. The refractive index of glass is given by the ratio :

A) sin i / sin e
B) sin e/ sin i
C) sin r / sin e
D) sin i / sin r​

Answer 1

sin r /sin e is the answer mate ....hope it helps u .....