Question

what is absolute refraction index.? Write its expression also

Answer 1

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ABSOLUTE REFRACTIVE INDEX :-Absolute refractive index of a medium is defined as the ratio of the velocity of light in vacuum to the velocity of light in the medium. If c is the velocity of light in vacuum and v in the medium, then n = c/v.


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Answer 2

it is the refractive index compared to other material index, but commonly compared to water