Question

a substance has critical angle of 45⁰ for yellow light.what is its refractive index​

Answer 1

Refractive Index = c/v

where c is the speed of light in a vacuum, and v is the velocity of light in the specified material. Thus for the yellow light -

μ = 1/sinθ

= 1/sin45∘

= √2

Thus, the refractive index for yellow light will be √2.

Answer 2

Answer:

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Explanation:

The formula relating refractive index (μ) and critical angle (C) is given by :

μ = 1/sin C

μ = 1/sin 45 = √2