A prism can produce a minimum deviation of 'd ' in a light beam . If four prism are combined , the minimum deviation that can be produced in this beam is
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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. ... How does the angle of minimum deviation of a glass prism vary if the incident violet light is replaced by red light? Rays of red and blue light are incident to a small angled prism.
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