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Question: The vessels A and B of equal volume and weight are immersed in water to a depth h. The vessel A has ...

The vessels A and B of equal volume and weight are immersed in water to a depth h. The vessel A has an opening at the bottom through which water can enter. If the work done in immersing A and B are WAW _ { A }and WBW _ { B } respectively, then

A

WA=WBW _ { A } = W _ { B }

B

WA<WBW _ { A } < W _ { B }

C

WA>WBW _ { A } > W _ { B }

D

Answer

WA<WBW _ { A } < W _ { B }

Explanation

Solution

When the vessels are immersed in water, work has to be done against up-thrust force but due to opening at the bottom in vessel A, up-thrust force goes on decreasing. So work done will be less in this case.