Question

WHAT IS THE MEANING OF UNITY IN FIELD OF REFRACTIVE INDEX???​

Answer 1

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The refractive index of a vacuum is defined as being unity. Because the refractive index for a propagation medium is defined as the ratio of the light velocity in a vacuum to the light velocity in the medium, the ratio becomes unity when the propagation medium is a vacuum.

Answer 2

Answer:

hi abhishek are you there...

btw good night sweet dreams take care