Question

The absolute refractive index of any medium is more than 1. Explain
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Answer 1

Explanation:

absolute refractive index of a medium is the ratio of speed of light in vaccum to the speed of light in a medium

mew= c1/c2

as there is no such medium found in which the speed of light is greater than speed in vaccum i.e 3×10^8 so refractive index of most materials is greater than 1.