Question

What is the value of critical angle, if the refractive index of a medium is √2​

Answer 1

Answer:

value of critical angle is

45 degree

Answer 2

Answer:

45°

Explanation:

Given that refractive index of the material is √2. i.e. n = √2.

Critical angle for the pair of media is related to refractive index by formula -

sinc = 1/n

sinc = 1/√2

Taking sin inverse,

c = arcsin(1/√2)

c = 45°

Hence, critical angle for the material is 45°.