Question

What is refractive index and Difference between absolute refractive index and Relative refractive index?





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Answer 1

When there is a change in medium, the speed of light changes which results in a deviation in the path of light. This phenomena is know as refraction.

The refractive index is a number which tells us how fast light travels in the given medium.

Difference between relative refractive index and absolute refractive index:-

Relative refractive index is the ratio of speed of light in the first medium with respect to the second medium.

It is represented by 1mu2.

Whereas absolute refractive index is the ratio of speed of light in the given medium to the speed of light in vacuum.

It is represented by mu.

Answer 2

Hey mate, here is it answer:

•Refractive index- The refractive index(n) of a transparent median is a ratio of the speed of light in vacuum to the speed of the light in the medium

•Relative refractive index- The refractive index of medium 2 with respect to medium 1 is given by the ratio of the speed of light in medium 1 and the speed of light in medium 2.

Nm=C
—-
Vm
•Absolute refractive index- Refractive index of a medium is considered with respect to that if air and we call it as absolute refractive index.

N= C
—-
V


Hope it helps you.....!!!! :) :)