question_answer

A metal ball \[{{B}_{1}}\] \[\left( density\text{ }3.2\text{ }g\text{ }c{{m}^{-3}} \right)\] is dropped in water while another metal ball \[{{B}_{2}}\] (density 6.0 g\[c{{m}^{-3}}\]) is dropped in a liquid of density\[1.6\,\,g\,\,c{{m}^{-3}}\]. If both the balls have the same diameter and attain the same terminal velocity, the ratio of viscosity of water to that of the liquid is

A) 2.0                               

B) 0.5

C) 4.0                 

D) Indeterminate due to insufficient data