MCQ
Two identical cylindrical vessels with their bases at same level each contains a liquid of density $\rho$. The height of the liquid in one vessel is $h_1$ and that in the other vessel is $h_2$. The area of either base is$A$. The work done by gravity in equalizing the levels when the two vessels are connected, is
- A$\left(h_1-h_2\right) g \rho$
- B$\left(h_1-h_2\right) g A \rho$
- C$\frac{1}{2}\left(h_1-h_2\right)^2 g A \rho$
- ✓$\frac{1}{4}\left(h_1-h_2\right)^2 g A \rho$
