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In a laminar flow the velocity of the liquid in contact with the walls of the tube is
detailed solution
Correct option is A
Because of viscosity the velocity of liquid layers which are in contact with a stationary wall are at rest.Talk to our academic expert!
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We have two (narrow) capillary tubes T1 and T2. Their lengths are l1 and l2 and radii of cross-section are r1 and r2 respectively. The rate of flow of water under a pressure difference P through tube T1 is 8cm3/sec. If l1 = 2l2 and r1 =r2, 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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