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  • From shows how the stream of water emerging from faucet neeks down as it falls. The area changes from  to A through a

From shows how the stream of water emerging from faucet neeks down as it falls. The area changes from A_0 to A through a fall of h. At what rate does the water flow the tap?

Option: 1

\text { Ao } \sqrt{\frac{2 g h A^2}{A_0^2-A^2}}


Option: 2

\text { 2Ao } \sqrt{\frac{2 g h A^2}{A_0^2-A^2}}


Option: 3

\text { Ao } \sqrt{\frac{2 g h A^2}{A_0^2+A^2}}


Option: 4

\text { Ao } \sqrt{\frac{ g h A^2}{A_0^2-A^2}}


Answers (1)

best_answer

\\Use, \quad A_0 V_0=A V\\ Also \ \ v^2=v_0{ }^2+2 g h \\ v_0{ }^2=v^2-2 g h \\ v_0=\sqrt{\frac{2 g h A^2}{A_0^2-A^2}}\\ or R=A_0 V_0=A_0 \sqrt{\frac{2 g h A^2}{A_0^2-A^2}}

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Gaurav

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