The refractive indicies of prism material for two different colours are 1.66 and 1.64. despersive power is
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here I have considered , one of the refractive index as violet and other as red
and the mean refractive index as yellow
u can get the formula in the book dear, it's jat a formula based question..
hope it helps u
and the mean refractive index as yellow
u can get the formula in the book dear, it's jat a formula based question..
hope it helps u
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