Question

what is critical angle how is it related to refractive index​

Answer 1

❤hola ❤

the incident angle at the interference of two media corresponding to which the refracted angle is 90 degree when light right travels from denser to rarer medium is called Critical Angle .

n= 1/ sin theta c.

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Answer 2

Hello!

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. So, for the critical angle the refractive angle will be 90

Thanks!❤