what do you mean by absolute refractive index.
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Absolute refractive index of a medium is defined as the ratio of the velocity of light in a 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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The ratio of speed of light in vaccum to the speed of light in any medium is equal to the absolute refractive index i.e n
n=c/v
where c is the speed of in vaccum which is equal to 3×10^8 m/s
And v is the speed of light in any medium
Explanation:
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