Fluid Mechanics Viscosity Question 281
Question: A cylindrical vessel contains a liquid of density$ \rho $ filled upto a height h. The uper surface of the liquid is in contact with a pistion of mass m and area of cross-section A. A small hole is drilled at the bottom of the vessel. (Neglect the viscous effects) The speed with which the liquid comes out of the hoe is:
Options:
A) $ \sqrt{2}gh $
B) $ \sqrt{2}g\left( h+\frac{m}{\rho A} \right) $
C)$ \sqrt{g\left( h+\frac{m}{\rho A} \right)} $
D) $ \sqrt{g\left( h+\frac{2m}{\rho A} \right)} $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ h\rho g+\frac{mg}{A}=\frac{1}{2}\rho v^{2} $
BETA
