Q.
A cylinder of mass M and average density d1 is lowered into a vessel of cross-sectional area A, half full of liquid of density d2d2
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a
Md2gd1
b
Md2gd1A
c
Md1gd2
d
Md1gd2A
answer is B.
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Detailed Solution
The volume of liquid displaced when the cylinder is immersed=Md1 Resultant upward thrust =Md1×d2g∴ Thrust on liquid surface =Md1×d2g (Newton's third law) This thrust is experienced by bottomIncrease of pressure at bottom=Md2gd1A
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