A wide jar is filled with glycerine having specific gravity 1.26, in this jar, a steel ball of radius 0.25 cm has been dropped. After some time it has been observed that ball is taking equal interval of time ( 1.8 s ) to cover equal successive distances, of 20 cm .
[Take, 
]. The viscosity of glycerine (in 
) is
Text Solution
Verified by ExpertsThe correct answer is:
A
From the expression,
where, 
is terminal speed.
Here, 
.
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