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A ball bearing of radius 1.5 mm mode of iron of density `7.85 g cm^(-3)` is allowed to fall through a long columu of glycerice of density `1.25 g cm ^(-3)` lt is found to attain a terminal velocity of 2.25 `cms^(-1)` .Determine the viscosity of glycerine in centipoise .

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1437 centipoise
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