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If liquid enters a section of tube of radius $2 c m$ with a velocity $20 m / s$ , which what velocity does the liquid leave another section of the tube of radius $4 c m$ ? (The tube is horizontal)

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detailed solution

Correct option is B

πr12v1=πr22v2⇒r12v1=r22v2 ⇒(2)2×20=(4)2×v2⇒v2=4×2016=5m/sec

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If liquid enters a section of tube of radius 2 cm with a velocity 20m/s , which what velocity does the liquid leave another section of the tube of radius 4 cm ? (The tube is horizontal)

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If liquid enters a section of tube of radius $2 c m$ with a velocity $20 m / s$ , which what velocity does the liquid leave another section of the tube of radius $4 c m$ ? (The tube is horizontal)