A sphere of mass M and radius Ris falling in a viscous fluid .The terminal velocity attained by the falling object will be proportional to ……

A sphere of mass M and radius Ris falling in a viscous fluid .The term

1.	A sphere of mass M and radius Ris falling in a viscous fluid .The terminal velocity attained by the falling object will be proportional to ……
Answer» `R^(2)` R `(1)/(R )` `(1)/(R^(2))` Solution :In TERMINAL VELOCITY `v_(t)=(2)/(9)*(R^(2)g)/(ETA)(rho-rho_(o))v_(t)propR^(2)` (All other terms are constant)