What is absolute refractive index?

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Refractive index of a medium with respect to water

Refractive index of a medium with respect to air

Reflective index of a medium with respect to oil

Refractive index of a medium with respect to vacuum

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Detailed Solution

Refractive index of a medium with respect to vacuum is known as absolute refractive index.

$n = \frac{c}{v}$

Where c is the speed of light in vacuum while v is the speed of light in the medium.

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