Question

how is the refractive index of a medium releated to the speed of light in it?​

Answer 1

GOOD AFTERNOON

Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another. ... Refractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance, or n = c/v.

Answer 2

Answer:

The refractive index of a medium (n) is equal to the speed of light (c) divided by the velocity of light through the medium (v). ... The lower the refractive index, the faster the velocity of light.