Question

define absolut refractive index

Answer 1

. 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 indexof refraction) or the ratio of the speed of light in a specified medium to that in the given medium (relative index of refraction) Symbol: n.

Answer 2

Change of path of light from one medium to another (rarer to denser or denser to rarer ) is know its refractive index