JEE Main 2020PhysicsThermal Properties of MatterMediumNumerical

JEE Main 2020 — Thermal Properties of Matter Question with Solution

JEE Main 2020 (03 Sep Shift 1)

Question

A bakelite beaker has volume capacity of 500 cc at 30°C. When it is partially filled with Vm volume (at 30°C)  of mercury, it is found that the unfilled volume of the beaker remains constant as temperature is varied. If γbester =6×10-60°C-1, where γ is the coefficient of volume expansion, then  Vm (in cc ) is close to …

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Show full solutionCorrect answer: 20
Correct answer
20

Step-by-step explanation

∆Vm=∆Vc

Vmγm∆T=Vcγc∆T

Vm=Vcγcγm=500×6×10-61.5.×10-4=20cc

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About this question

This is a previous-year question from JEE Main 2020, covering the Thermal Properties of Matter chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.