There are two identical small holes of area of cross-section a on the opposite sides of a tank containing a liquid of density $\rho $. The difference in height between the holes is $h$. Tank is resting on a smooth horizontal surface. Horizontal force which will has to be applied on the tank to keep it in equilibrium is
  • A$gh\rho a$
  • B$\frac{{2gh}}{{\rho \,a}}$
  • C$2\rho agh$
  • D$\frac{{\rho gh}}{a}$
Diffcult
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