Question

Absolute refractive (n)index is defined as the ratio of


n=speed of light in vacuum/speed of light in medium

n=speed of light in given medium/speed of light in vacuum

n=speed of light in vacuum×speed of light in given medium

n=speed of light in medium (1)/speed of light in medium (2)​

Answer 1

Refractive index or the index of refraction is the ratio of the speed of light in vacuum (or air) to the speed of light in a transparent material.

Answer 2

Explanation:

absolute refractive index (n) =

speed of light in vacuum/speed of light in medium

= c / v

hope it helps...