Question

what is reflective index​

Answer 1

HEYA MATE !

The extend of the change in direction that takes place in a given pair of media may be expressed in the terms of refraction index.

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Answer 2

$\huge\bf{HOLLA \: DEAR!!}$

Your answer goes here:-

Refractive index:-

Refractive index of a medium is defined as the ratio of velocity of light in the vacuum to the velocity of light in the medium.