Question

Define relative refractive index write its si unit

Answer 1

Answer:

Mark 〽 me Brainleist

Explanation:

Refractive index is a ratio it doesn't have a unit.

So, refractive index(n)=c/v. As it is a ratio of same physical quantity(velocity),it has no unit. We are defining refractive index as a number. E.g. refractive index of water is 1.33,refractive index of glass is 1.5.

Answer 2

Explanation:

Relative refractive index: When light travels from one medium to another medium, then the refractive index is known as the relative refractive index. Absolute refractive index: When light travels from vacuum to another medium, then the refractive index is known as the absolute refractive index.

n=c/v