Question

state the relation between the refractive index and the critical angle ​

Answer 1

Answer:

Relation Between Critical Angle And Refractive Index. In Optics, The angle of incidence to which the angle of refraction is 900 is called critical angle. The ratio of velocities of a light ray in the air to the given medium is refractive index.

Answer 2

How do a critical angle and a refractive index relate?

The critical angle takes place when the ray is refracted at 90º, therefore along the boundary of the second medium. If the critical angle is exceeded, all of the light is reflected. This is known as total internal reflection.

On the other hand, the index of refraction determines how much of a wave bends in a certain medium.

The critical angle is related to the refractive index by Snell’s Law:

sin of incident angle / sin of refractive angle = refractive index of medium 2 / ref