Absolute refractive index

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Yogita Ingle 7 years, 3 months ago
Refractive Index
(i) Refractive index of a medium is that characteristic which decides speed of light in it.
(ii) It is a scalar, unit less and dimensionless quantity.
(iii) Absolute refractive index : When light travels from vacuum to any transparent medium then refractive index of medium w.r.t. vacuum is called it's absolute refractive index i.e. vacuumµmedium = c/v
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