Question

state the relation between refractive index & 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

The relation between refractive index and the the critical angle is inverse.

Explanation:

Critical angle is formed when the angle of refraction is equal to 90°. At this point, light cannot pass through the surface. If n is the refractive index, then the relation between refractive index and the critical angle​ is given by :

$\sin\theta_c=\dfrac{1}{n}$

Here,

$\theta_c$ is the critical angle

So, it is clear that the relation between refractive index and the the critical angle is inverse. Hence, this is the required solution.

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Relation between refractive index and the critical angle​

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