A metal sphere connected by a string is dipped in a liquid of density ρ as shown in the figure. The pressure at the bottom of the vessel will be (p0 = atmospheric pressure)
A
p=p0+ρgh
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B
p>p0+ρgh
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C
p<p0+ρgh
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D
p0
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Solution
The correct option is Ap=p0+ρgh The weight of the sphere (mg) gets balanced by the upthrust on the sphere from the liquid which makes an equal and opposite pair of forces. Hence there will be no effect on the pressure at bottom of vessel. Or p=p0+ρgh