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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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A cube of a substance of coefficient of cubical expansion γ1\gamma_1 is floating in a liquid of coefficient of cubical expansion γ2(γ2<γ1)\gamma_2\left(\gamma_2 < \gamma_1\right), such that 50%50 \% of its volume is inside the liquid. If temperature of the system is now increased, the percentage of volume of cube inside the liquid may be
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Correct option: C
45%45 \%
Option C (45 %) is correct because the volume expansion of the cube is greater than that of the liquid, causing a decrease in the submerged percentage.

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