how is Refractive Index of a medium related to the speed of light ? write the expression

Open in App

Solution

Dear student. Refractive index of a medium is defined as the ratio of the velocity of light in a vacuum to the velocity of light in the medium. So. n=c/v. Where n is refractive index, c is speed of light in vaccum and v is speed of light in given medium. Refractive index is measurement of optical density of medium. Regard

Suggest Corrections

Similar questions

Q. State the laws of refraction of light. Explain the term 'absolute refractive index of a medium' and write an expression to relate it with the speed of light in vacuum.

How is the refractive index of a medium related to the speed of light in it and in vacuum or air?

Q. State the law of refraction of light.Write an expression to relate absolute refractive index of a medium wit speed of light in vacuum.
The refractive index of medium

x

with respect to

y

\frac{2}{3}

and the refractive index of medium

y

with respect to

z

\frac{4}{3}

. Calculate the refractive index of medium

z

with respect to

x

Q. If

v_{1}, v_{2}

and

c

represent the speed of light in medium

1

, medium

2

, and vacuum respectively, write the expression for
a)absolute refractive index of medium

1

b)absolute refractive index of medium

2

Hence show that,

η_{2} = \frac{v_{1}}{v_{2}}

How is refractive index of a medium 2 given with respect to medium 1 related to speed of light?
where, $n_{1}$ and $n_{2}$ are the respective refractive indicies of medium 1 and medium 2. And, $c_{1}$ and $c_{2}$ are speed of light in medium 1 and medium 2 respectively.

Join BYJU'S Learning Program