Home
Class 12
PHYSICS
What is critical angle and total interna...

What is critical angle and total internal reflection?

Text Solution

Verified by Experts

(i) "The angle of incidence in the denser medium for which the refracted ray graces the boundary is called critical angle `i_c`
(ii) The entire light is reflected back into the denser medium itself. This phenomenon is called total internal reflection.
Promotional Banner

Similar Questions

Explore conceptually related problems

The critical angle for total internal reflection in diamond is 24.5^(@) . The refractive index of diamond is

If the critical angle for total internal reflection from a medium to vacuum is 30^(@) , then velocity of light in the medium is

An optical fibre (RI = 1.72) is surrounded by a glass coating (RI= 1.50). Find the critical angle for total internal reflection at the fibre-glass interface.

What is critical day length?

Partial reflection and Total internal reflection.

When a ray of light enter from one medium to another, its velocity is doubled. The critical angle for the ray for two internal reflection will be

Rainbow formation or Prove that a rainbow is the combined effect of the refraction, dispersion and total internal reflection of light.

The reason for brilliance of diamonds is total internal reflection of light.