Question

what is refractive index?​

Answer 1

Explanation:

Refractive index.

The deviation in the path of light ray when it passes from one medium to another medium can be measured by a physical quantity, is known as REFRACTIVE INDEX

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Answer 2

Answer:

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➠ optics, the refractive index or index of refraction 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.

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