Water is conveyed through a uniform tube of 8 cm in diameter and 3140 m in length at the rate 
per second. The pressure required to maintain the flow is (Viscosity of water 
SI units)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
According to poiseuille formula,
Rate of flow, 
Where the symbols have their usual meanings.
Here, 
Substituting the given values we get
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