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MHT CET 2023 (13 May, Shift 2) · Prism, Dispersion & Scattering

Prism, Dispersion & Scattering question from MHT CET 2023 (13 May, Shift 2)

Q42MHT CET 2023 · 13 MAY · SHIFT 2Medium

Prism, Dispersion & Scattering

A ray of light passes through an equilateral prism such that the angle of incidence $(i)$ is equal to angle of emergence $(e)$ . The angle of emergence is equal to $\left(\frac{3}{4}\right)$ th the angle of prism. The angle of deviation is

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Answer: (b)

$A = 60^\circ$ , $i = e = \frac{3}{4} \times 60^\circ = 45^\circ$ .
$\delta = i + e - A = 45^\circ + 45^\circ - 60^\circ$
$\delta = 30^\circ$
So the answer is (b) $30^\circ$ .

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