Physics - Fluid Question with Solution | TestHub

PhysicsFluidArchimedes principleMedium2 minQB

PhysicsMediummultiple choice

Adjacent figure shows a block $A$ , held by a spring balance $D$ and submerged into a liquid in a beaker. The beaker is kept on a weighing balance E. Mass of the beaker plus the liquid is 2.5 kg . Balance D reads 2.5 kg and E reads 7.5 kg . Volume of the block is $0.003 m^{3}$ . Consider the following statements. Select the correct statement(s). Take : $g = 10 m / s^{2}$

Options:(select one or more)

Answer:

A, B, C, D

Solution:

$ρ = \frac{5}{0.003} = \frac{5000}{3} k g / m^{3}$

$m g = T + F_{b} = 25 + 50 = 75 \Rightarrow m = 7.5 k g$

$F_{b} = (7.5 - 2.5) g = 5 \times 10 = 50 N$

$F_{b}^{'} = \frac{1}{2} \times 50 = 25 N$

$\frac{( 2.5 g + 25 )}{g} = \frac{( 25 + 25 )}{10} = 5 k g$

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Archimedes principle

⏱ 2mℹ️ Source: QB

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