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Arlecino [84]
3 years ago
12

What is refractive index​

Physics
1 answer:
BARSIC [14]3 years ago
4 0

Answer:

Explanation:

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 where c is the speed of light in vacuum and v is the phase velocity of light in the medium or for short the ratio of the velocity of light in a vacuum to its velocity in a specified medium.

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