Question:

A closed water tank has cross-sectional area A. It has small hole at a depth of h from the free surface of water. The radius of the hole is r so that r << \(\sqrt{\frac{A}{\pi}}\). If Po is the pressure inside the tank above water level, and Pa is the atmospheric pressure, the rate of flow of the water coming out of the hole is [ ρ is the density of water]
A closed water tank

Updated On: Dec 23, 2024
  • \(\pi r^2\sqrt{2gh+\frac{2(P_o-P_a)}{\rho}}\)
  • \(\pi r^2\sqrt{2gH}\)
  • \(\pi r^2\sqrt{gh+\frac{2(P_o-P_a)}{\rho}}\)
  • \(\pi r^2\sqrt{2gh}\)
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The Correct Option is A

Solution and Explanation

The correct answer is (A) : \(\pi r^2\sqrt{2gh+\frac{2(P_o-P_a)}{\rho}}\).
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