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Question
A dimensionally consistent relation for the volume V of a liquid of coefficient of viscosity η flowing per second through a tube of radius r  and length l and having a pressure difference P across its end, is
Options:
A .  V=πPγ48ηl
B .  V=πηl8Pγ4
C .  V=8Pηlπγ4
D .  V = πPη8lγ4
Answer: Option A
:
A
Formula for viscosity η=πPγ48Vl V = πPγ48ηl

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