Physics, asked by Anonymous, 3 months ago

what is refractive index...



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Answered by ojasmaurya
1

Answer:

In optics, the refractive index of a material is a dimensionless number that describes how fast light travels through the material. It is defined as n={\frac {c}{v}}, where c is the speed of light in vacuum and v is the phase velocity of light in the medium.

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