Question

What is refractive index? Explain.

Answer 1

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$\huge\underline\mathfrak\green{Refractive\:index}$

The refractive index defines how light passes through a medium. The refractive index is also defined as the ratio of the speed of light in a medium to the speed of light in a vacuum.

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$\huge\bold{n = \frac{c}{v}}$

Where n is refractive index, c is velocity of light in vacuum and v is velocity of light in medium.

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Answer 2

Answer:

Refractive index is the measure of bending of a light ray when passing from one medium to another. It can also be defined as the ratio of the velocity of a light ray in an empty space to the velocity of light in a substance .

n = c/v

where , n is the refractive index of the medium

c is the velocity of light in vacuum

v is the velocity of light in the medium

Explanation: