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Question
Equal mass of three liquids are kept in three identical cylindrical vessels A, B and C. The densities are ρA, ρB, ρC with ρA < ρB < ρC. The force on the base will be
Options
maximum in vessel A
maximum in vessel B
maximum in vessel C
equal in all the vessels
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Solution
equal in all the vessels
The force on the base is given by
F = hρg × A
⇒ F = (hAρ)g
⇒ F = (Volume ×Density) × g
⇒ F = mg}
In the question, the masses are equal. So, the force on the base is the same in all cases.
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