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NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

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Application +4 | -1

Two cylindrical vessels with their bases at the same level, contain a liquid of density

\rho

. The height of the liquid in the vessel is

{h_1}

and in the other is

{h_2}

. The area of either base is A. The work done by the gravity in equalizing the levels when the vessels are connected.

View answer and explanation

Correct option: D

\frac{{A\rho g}}{4}{\left[ {{h_1} - {h_2}} \right]^2}

Option D (

\frac{{A\rho g}}{4}{\left[ {{h_1} - {h_2}} \right]^2}

) is correct because the work done by gravity is equal to the change in potential energy of the liquid as it equalizes its level.

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