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MHT CET 2019 (2 May, Shift 1) · Terminal Velocity

Terminal Velocity question from MHT CET 2019 (2 May, Shift 1)

Q49MHT CET 2019 · 2 MAY · SHIFT 1Medium

Terminal Velocity

A metal sphere of radius ' $R$ ' and density ' $\rho_1$ ' is dropped in a liquid of density ' $\sigma$ ' moves with terminal velocity ' $v$ '. Another metal sphere of same radius and density ' $\rho_2$ ' is dropped in the same liquid, its terminal velocity will be

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Answer: (c)

Same radius and liquid: $v \propto (\rho - \sigma)$ .
$v_2 = v\,\dfrac{\rho_2 - \sigma}{\rho_1 - \sigma}$
So the answer is (c).

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