Question

the refractive index of glass respect to air is 2 then the critical angle of glass air interface is
a. 0°
b. 45°
c. 30°
d. 60°​

Answer 1

Answer:

We know that

Relative refractive index = 2

so According to snell's law

sin i / sin r =2.

and sini/sinr = 1/ sinc

2 = 1/ sin c

sinc = 1/2

sinc = sin30

c=30°

Critical angle = 30°

hope it will help you.....

Answer 2

Answer:

here's ur ans mate !!!!!!!!!!!