Question

what is the absolute refractive index of any medium

Answer 1

a number indicating the speed of light in a given medium as either the ratio of the speed of light in a vacuum to that in the given medium (absolute index of refraction) or the ratio of the speed of light in a specified medium to that in the givenmedium (relative index of refraction) Symbol: n.

Answer 2

velocity of light in a vacuum / velocity of light in medium1