In the diagram shown, a plot between δ (angle of deviation) versus i (angle of incidence) for a triangular prism is given. From the observed plot, some conclusion can be drawn. Mark out the correct conclusion.
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a
The range of deviation for which two angles of incidence are possible for same deviation is δ0-δm
b
The curve is asymmetrical about i0
c
For a given δ, i is unique
d
Both 1 and 2 are correct.
answer is D.
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Detailed Solution
The graph is asymmetrical about i0 the section to the left of i0 being steeper than the section to the right.