A small ball of mass M and density ρ is dropped in a viscous liqu… | JEE Main 2023 Physics PYQ

MCQEasyJEE Main 2023 · 6 April, Shift 1Viscosity & Stoke's Law

A small ball of mass $M$ and density $\rho$ is dropped in a viscous liquid of density $\rho_o$ . After some time, the ball falls with a constant velocity. What is the viscous force on the ball?

A
$F = Mg\left(1 + \frac{\rho_o}{\rho}\right)$
B
$F = Mg\left(1 + \frac{\rho}{\rho_o}\right)$
C
$F = Mg\left(1 - \frac{\rho_o}{\rho}\right)$
D
$F = Mg\left(1 \pm \rho\rho_o\right)$

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