Following are graphs of angle of deviation versus angle of incidence.
a) b) c)
based on the above graphs mark the correct options

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Graph (c) may be a part of the graph for ray of light that travels from rarer to denser medium.

Graph (b) may be a part of the graph for ray of light that encounters a plane mirror

Graph (a) may be part of the graph for ray of light that travels from denser to rarer medium.

Graph (b) may be part of the graph for ray of light that encounters a denser to rarer medium boundary.

answer is A, B, D.

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Detailed Solution

Light travels from rarer to denser medium

$δ = i - \sin^{- 1} \frac{(\sin i)}{μ}$

Non-linear increasing function of i.
Slope of tangent: $\frac{d δ}{d_{i}} = 1 - \frac{\cos i}{\sqrt{μ^{2} - \sin^{2} i}}$
Slope of tangent increases as i increases
Hence ‘c’ is not the graph for light that travels from rarer to denser medium.

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