Question

DEFINE THE TERM REFRACTIVE INDEX???​

Answer 1

Answer:

In optics, the refractive index of a material is a dimensionless number that describes how fast light travels through the material. It is defined as n={\frac {c}{v}}, where c is the speed of light in vacuum and v is the phase velocity of light in the medium.

Answer 2

Explanation:

Refractive index, also called index ofrefraction, measure of the bending of a ray of light when passing from one medium into another. ... Refractive indexis 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.

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