How does the angle of minimum deviation of a glass prism vary if the incident violet light is replaced by red light
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Angle of minimum deviation is directly proportional to refractive index.
Refractive index for red is least while for violet is maximum.
Refractive index is inversely proportional to the wavelength of the light. As red has a higher wavelength than violet light therefore it has a smaller refractive index than violet.
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