Question

what is refractive index?explain.​

Answer 1

the ratio of the velocity of light in a vacuum to its velocity in a specified medium.

Answer 2

Answer:

refractive index actually gives us the bending ability of light in a medium.lower is the refractive index,lower is the optical density of the medium.

Refractive index depends on the nature of material of the medium and on the wavelength of light used.

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