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why do a graph drawn by taking angle of incidence and angle of deviation on both axis gives a curve i.e,first it increases then it decreases and the it increases?

why do a graph drawn by taking angle of incidence and angle of deviation on both axis gives a curve i.e,first it increases then it decreases and the it increases?

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1 Answers

Gautham Pai M K
35 Points
9 years ago

Because for each angle of incidence we have a different angle for deviation. "provided if the angle of the prism is small then angle of incidence has no effect on deviation".

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