A) \[\sqrt{400}\,m/s\]
B) \[\sqrt{600}\,m/s\]
C) \[\sqrt{60}\,m/s\]
D) None of these
Correct Answer: A
Solution :
Pressure at the bottom of tank \[P=h\rho g=3\times {{10}^{5}}\frac{N}{{{m}^{2}}}\] Pressure due to liquid column \[{{P}_{l}}=3\times {{10}^{5}}-1\times {{10}^{5}}=2\times {{10}^{5}}\] and velocity of water \[v=\sqrt{2gh}\] \[\therefore \] \[v=\sqrt{\frac{2{{P}_{1}}}{\rho }}=\sqrt{\frac{2\times 2\times {{10}^{5}}}{{{10}^{3}}}}=\sqrt{400}\,m/s\]
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