Question

what do you mean by reflection index of a transparent medium
$also \: \: write \: \: its \: unit \:$
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Answer 1

Answer:

Refractive index of a transparent medium is the ratio of speed of light in vaccum to speed of light in that medium. the refractive index has no unit as it is the ratio of two similiar quantities.

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Answer 2

Answer:

Refractive index of a transparent medium is the ratio of speed of light in vaccum to speed of light in that medium. the refractive index has no unit as it is the ratio of two similiar quantities.