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Q.

Water flows at 10 c.c./s through an opening at the bottom of a tank in which the water is 2m deep. The rate of flow of water if an additional pressure of 20kpa is applied to the top of water will be

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a

20 c.c/s

b

102 c.c/s

c

202 c.c/s

d

100 c.c./s

answer is B.

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Detailed Solution

20 kpa pressure = 20 x 103103 x 10m of water column=2m of water column.Now, Q∝h⇒Q'Q=h'h=2+22=2⇒Q'=102 c.c./s
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