Question

is refractive index a universal constant.what is its unit​

Answer 1

Answer:

Hope it helps u

Explanation:

The refractive index (n?) of a material is defined as the ratio of velocity of light in a vacuum to that in a defined material. The refractive index of a glass is not a constant, but depends on the wavelength of the incident light, known as dispersion.

Answer 2

Answer:

yes it is a universal constant . It has no units