A metal ball 
(density 
) is dropped in water while another metal ball 
(density 
) is dropped in a liquid of density 
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
Text Solution
Verified by ExpertsB
The terminal velocity of the body of radius r, density 
falling through a medium of density 
is given by
Where 
is the coefficient of viscosity of the medium
… (1)
And 
….. (2)
Where the subscripts 
and 
represent metal ball 
and metal ball 
respectively.
and 
(Given)
Substituting the given values, we get
Substituting the given values we get
( 
Density of water = 1g 
)
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