Question

Find the value of angle of emergence when an incident ray makes an angle of 40° with a normal to the air glass interface of the rectangular glass slab

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

Answer 2

Answer:

Angle of emergence is 40 degrees

Explanation:

Angle of incidence is 40 degrees (given)

We Know That
Angle of incidence = Angle of emergence (i=e)

Therefore, angle of emergence is 40 degrees

Hope it helps...