We have two (narrow) capillary tubes T 1 and T 2 . Their lengths are l 1 and l 2 and radii of cross-section are r 1 and r 2 respectively. The rate of flow of water under a pressure difference P through tube T 1 is 8cm 3 /sec. If l 1 = 2l 2 and r 1 =r 2 , what will be the rate of flow when the two tubes are connected in series and pressure difference across the combination is same as before (= P)
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Verified by ExpertsThe correct answer is:
B
For composite tube
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