Two capillary of lengths L and 2L and of radius R and 2R are connected in series. The net rate of flow of fluid through them will be (given rate of the flow through single capillary, 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Fluid resistance is given by 
.
When two capillary tubes of same size are joined in series, then equivalent fluid resistance is
Equivalent resistance becomes 
times, so rate of flow will be (8/9)X.
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