JEE MAIN - Physics (2013 (Offline) - No. 7)
The graph between angle of deviation $$\left( \delta \right)$$ and angle of incidence $$(i)$$ for a triangular prism is represented by
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Paliwanag
For the prism as the angle of incidence $$(i)$$ increase, the angle of deviation $$\left( \delta \right)$$ first decreases goes to minimum value and then increases.