A hollow cylinder of mass m made heavy at its bottom is floating vertically in water. It is tilted from its vertical position through an angle 
and is left. The restoring force acting on it is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Let 
be the length of the cylinder in water it is in the vertical position and A
be the cross-sectional area of the cylinder. As cylinder is floating so Weight of cylinder = upward thrust rag
or 
When the cylinder is tilled through an angle 
, length of cylinder in water 
Weight of water displaced 
Restoring force 
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