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Archimedes' Principle

Object A is c...

Question

Object A is completely immersed in water . True weight of object A is $W_{A}$ Weight of water with beaker is $W_{B}$ . Let B be the buoyand force . $W_{1}$ and $W_{2}$ are scale reading of spring balance and weighting scale respectively

A

W_{1} = W_{A}

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B

W_{1} = W_{A} + B

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C

W_{2} = W_{B}

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D

W_{2} = W_{B} + B

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Solution

The correct option is D $W_{2} = W_{B} + B$
Consider the problem
$W_{1} = t r u e w e i g h t - b u o y a n t f o r c e = W_{A} - B$

Reading of the weighing scale
$\begin{matrix} W_{2} = h e i g h t o f w a t e r + b e a + r e a c t i o n t o b u o y a n t f o r c e \Rightarrow W_{2} = W_{B} + B \end{matrix}$

Hence, Option $D$ is the correct answer.

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