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Question
The graph between angle of deviation δ and angle of incidence (i) for a triangular prism is represented by :
The graph between angle of deviation δ and angle of incidence (i) for a triangular prism is represented by :
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Solution
The correct option is D
As we know that the angle of deviation depends upon the angle of incidence.
From the graph, if the angle of incidence is gradually increased from a small value, the angle of deviation first decreases, becomes minimum for a particular angle of incidence and then begins to increase.
Hence, option B is correct.
As we know that the angle of deviation depends upon the angle of incidence.
From the graph, if the angle of incidence is gradually increased from a small value, the angle of deviation first decreases, becomes minimum for a particular angle of incidence and then begins to increase.
Hence, option B is correct.
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