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MHT CET 2019 2nd May Morning Shift
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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

A
$\left.v\left[\rho_2+\sigma\right) /\left(\rho_1+\sigma\right)\right]$
B
$\left.v\left[\rho_1+\sigma\right) /\left(\rho_2+\sigma\right)\right]$
C
$v\left[\rho_2-\sigma) /\left(\rho_1-\sigma\right)\right]$
D
$\left.v\left[\rho_1-\sigma\right) /\left(\rho_2-\sigma\right)\right]$
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