For which colour the refractive index of the prism is maximum?

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Red

Violet

Green

None of these

answer is B.

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Detailed Solution

The refractive index of the prism is maximum for violet.
The refractive index of the prism is maximum for violet and minimum for red. The refractive index varies with frequency, it does not change when light travels from one medium to another, and because violet colour has the shortest wavelength and therefore the refractive index is maximum for violet colour.

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