The absolute refractive index of any medium i | vedclass

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Question

(B) The absolute refractive index $(n)$ of a medium is defined as the ratio of the speed of light in a vacuum $(c)$ to the speed of light in that medi

Vedclass · Accepted Answer

$ > 1$

Vedclass · Answer

(B) The absolute refractive index $(n)$ of a medium is defined as the ratio of the speed of light in a vacuum $(c)$ to the speed of light in that medium $(v)$: $n = c/v$.Since the speed of light in a vacuum is the maximum possible speed of light in any medium, $c$ is always greater than $v$ $(c > v)$.Therefore, the ratio $c/v$ is always greater than $1$ for any medium other than a vacuum (where it is exactly $1$).Thus, the absolute refractive index of any medium is always greater than $1$ $(n > 1)$.

The absolute refractive index of any medium is always $.....$

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