How does the refractive index of a medium depend on its temperature?

How does the refractive index of a medium depend on its temperature?

Class 10 | ICSE | Physics | Refraction of Light at Plane Surfaces | Selina

How does the refractive index of a medium depend on its temperature?

Solution:

The refractive index of a medium drops as the temperature of the medium rises.

With a rise in temperature, the speed of light in that medium increases. As a result, the refractive index = [light velocity in vacuum / light velocity in medium] falls.

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More Material

A …… lens is used to correct myopia and a ….. lens is used to correct hypermetropia.
A Concave, concave
B Convex, convex
C Convex, concave
D Concave, convex

Rate of reaction of any substance depends on
(A) active mass
(B) molecular weight
(C) atomic weight
(D) equivalent weight

Formula of oleum is
(A) $\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{7}$
(B) $\mathrm{H}_{2} \mathrm{SO}_{4}$
(C) $\mathrm{H}_{2} \mathrm{SO}_{3}$
(D) $\mathrm{H}_{2} \mathrm{SO}_{5}$

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Use determinants to show that the following points are collinear. $P(-2,5), Q(-6,-7)$ and $R(-5,-4)$

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