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MHT CET 2019 (2 May, Shift 1) · Prism, Dispersion & Scattering

Prism, Dispersion & Scattering question from MHT CET 2019 (2 May, Shift 1)

Q71MHT CET 2019 · 2 MAY · SHIFT 1Easy

Prism, Dispersion & Scattering

A thin hollow prism of refracting angle $3^\circ$ , filled with water gives a deviation of $1^\circ$ . The refractive index of water is

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Answer: (b)

Thin prism (hollow walls add no deviation): $\delta = (\mu - 1)A$ .
$1^\circ = (\mu - 1) \times 3^\circ$
$\mu = 1 + \frac{1}{3} = 1.33$
So the answer is (b) 1.33.

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