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Anomalous Expansion of Water

An object is ...

Question

An object is placed in 3 beakers containing liquids A, B and C respectively. If the density of object (d) when compared to densities of liquids A, B and C is given by $d_{A} < d < d_{B} < d_{C}$ then the body sinks in:

A

Liquid A

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B

Liquid B

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C

Liquid C

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D

All the three liquids

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Solution

The correct option is A Liquid A
Buyont force =weight of displaced fluid = volume of object $\times$ density of fluid
Resultant force on object = Weight - Buyont force
$= V d g - V d_{L} g$
$d > d_{L}$
The body sinks.
It sinks in liquid A

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