A container of mass M containing liquid of mass m_0 is kept on we… - Vidyadip

MCQ

A container of mass $M$ containing liquid of mass $m_0$ is kept on weighing machine. A ball of mass $m$ is released from rest from given position. Then choose correct option just after ball is released

A
Reading of weighing machine must be equal to $(M + m + m_0)g$
B
Reading of weighing machine $> (M + m + m_0)g$ only if density of ball $<$ density of liquid
C
Reading of weighing machine $> (M + m + m_0) g$ if density of ball $ \ne $ density of liquid
✓
Reading of weighing machine $< (M + m + m_0)g$ if density of ball $ \ne $ density of liquid

✓

Answer

Correct option: D.

Reading of weighing machine $< (M + m + m_0)g$ if density of ball $ \ne $ density of liquid

d
$\mathrm{d}_{\mathrm{liquid}}>\mathrm{d}_{\mathrm{ball}}$

or $\mathrm{d}_{\mathrm{ball}}>\mathrm{d}_{\text {liquid }}$

$\mathrm{cm}$ will move downward.

$Normal < weight$

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