Medium
$A$ small metal sphere of mass $M$ and density $d_{1}$,when dropped in a jar filled with liquid,moves with terminal velocity after some time. The viscous force acting on the sphere is ($d_{2} =$ density of liquid,$g =$ gravitational acceleration).
- A$Mg(1 - \frac{d_{2}}{d_{1}})$
- B$Mg(\frac{d_{2}}{d_{1}})$
- C$Mg(1 - \frac{d_{1}}{d_{2}})$
- D$Mg - (\frac{d_{1}}{d_{2}})$
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