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 :
V = πpr⁴/8ηl
V = πηl/8pr⁴
V = 8pηl/πr⁴
V = πpη/8lr⁴
Answer :
V = πpr⁴/8ηl
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