Question

what is ment by absolute refractive index ? write its unit and dimensional formula.​

Answer 1

Answer:

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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=cv.

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Answer 2

The absolute refractive index is defined as the ratio of the speed of light in vacuum and in the given medium.

Dimensional Formula of Refractive

Index = M^0L^0T^0.$\:$