Question

How is the refractive index of a medium related to the speed of light? Obtain an
expression for refractive index of a medium with respect to another in terms of speed of
light in these two media?


I need small answer​

Answer 1

refractive index of a medium depends upon the speed of light in that medium

if the speed of light increases the refractive index of that medium in which the light travels decreases .

expression:

refractive index of a medium with respect to second medium is=

RI= speed of light in the second medium / speed of light in the first medium

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