An open pan P filled with water p (density ρw) is placed on a vertical rod, maintaining equilibrium. A block of density ρ is placed on one side of the pan as shown. Water depth is more than height of the block.
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a
Equilibrium will be maintained only if ρ < ρw
b
Equilibrium will be maintained only if ρ≤ρw
c
Equilibrium will be maintained for all relations between ρ and ρw..
d
Equilibrium will not be maintained in all cases.
answer is B.
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Detailed Solution
As long as ρ≤ρw pressure at the bottom of the pan would be same everywhere, according to the Pascal's law.