n=c/v=λ0/λ (T doesn't change) and v of light is constant in a specific medium(i.e. the ratio is constant in given mediums), so the index of refraction is constant for all light when changing mediums.(adsbygoogle = window.adsbygoogle || []).push({});

If we say that index of refraction differs according to the wavelength, then there is contradiction with the above formula n=c/v that says n is constant in specific medium

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# N=c/v=λ0/λ (T doesn't change) and v of light is constant

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