Absolute Refractive Index of a Medium - Definition

Open in App

Solution

Absolute Refractive Index of a Medium:
The absolute refractive index is defined as the ratio of the speed of light in a vacuum to the speed of light in the given medium.
It is always greater than 1.
If $c$ is the speed of light in a vacuum and $v$ is the speed of light in the given medium, then the absolute refractive index is given as:
$n = \frac{c}{v}$

Suggest Corrections

110

Similar questions

Q. Define absolute refractive index of a medium and relative refractive index.

Q. define absolute refractive index of a medium

Absolute refractive index of medium 'A' and medium 'B' are 'na' and 'nb' respectively.Then what is the refractive index of medium 'B' with respect to medium 'A'?

Q. Write the definition of refractive index of a medium.

Q. If

v_{1}, v_{2}

and c represent the speed of light in medium 1, medium 2, and vacuum respectively , write the expressions for
(a) absolute refractive index of medium 1
(b) absolute refractive index of medium 2
Hence show that

_{1} n_{2} = \frac{n_{2}}{n_{1}}

Join BYJU'S Learning Program