Diagram (figure) shows a venturimeter, through which water is flowing. speed of water at X is 2,cm/s

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9-1.Fluid Mechanics

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The diagram (figure) shows a venturimeter, through which water is flowing. The speed of water at $X$ is $2\,cm/s$. The speed of water at $Y$ (taking $g = 1000\,cm/s^2$ ) is ........ $cm/s$

A

$23$

B

$32$

C

$101$

D

$1024$

Solution

$V_2^2 = V_1^2+2gh=(2)^2 + 2 \times 1000 \times 5.1 \times 10^{-1}=1024$

$V_2 = 32\,cm/s$

Standard 11

Physics

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