Question

What is Refractive Index.​

Answer 1

Answer:

In option, 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.

Explanation:

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Answer 2

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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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