Question

The value for critical angle for a particular type of glass w.r.t. air is 45degree. Find the refractive index of this type of glass w.r.t. air

Answer 1

Answer:

(a) Calculate the critical angle for glass air interface if a ray of light incident on a glass surface is deviated through 15

o

when angle of incident is 45

o

.

(b) A ray of light travels from denser medium having refractive index

2

to air, What should be the angle of refracted when angle of incident is 30

0