A) 10
B) 20
C) 25.5
D) 5
Correct Answer: B
Solution :
Let \[{{P}_{0}}\]is the atmospheric pressure, \[\rho \]thedensity of liquid and v the velocity at whichwater is coming out. Apply the Bernoullistheorem just inside and outside the hole. \[{{P}_{\text{inside}}}+\rho gh+0={{P}_{\text{outside}}}+\frac{\rho {{v}^{2}}}{2}\] \[\Rightarrow \] \[{{P}_{0}}+\rho gh={{P}_{0}}+\frac{\rho {{v}^{2}}}{2}\] \[\Rightarrow \] \[v=\sqrt{2gh}=\sqrt{2\times 10\times 20}=20\,m/s\]You need to login to perform this action.
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