Question

what is the relation between density and wavelength in light and refractive index​

Answer 1

Answer:

The wavelength of the light changes according to the density of the medium and frequency remains same irrespective of the medium. So, the refractive index of light depends only on the wavelength, not on the frequency. So the light with higher wavelength disperses more than light with lower wavelength.

Explanation:

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Answer 2

The refractive index can be seen as the factor by which the speed and the wavelength of the radiation are reduced with respect to their vacuum values: the speed of light in a medium is v = c/n, and similarly the wavelength in that medium is λ = λ0/n, where λ0 is the wavelength of that light in vacuum.

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