Q.

The diagram shows Venturi meter through which water is flowing. The speed of water at X is 2 cm/sec. The speed of water at Y in cm/s (taking g=1000 cm/sec2) is_______

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answer is 32.

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Detailed Solution

The speed of water at sections X and Y should be equal. ApplyingBernoulli's equation P1+12ρv12=P2+12ρv22⇒ 12ρv22−v12=P1−P2=hρgv22=v12+2ghv2=(2)2+2×1000×0.51=32cm/s
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