JEE Main 2020PhysicsMechanical Properties of FluidsMediumMCQ

JEE Main 2020 — Mechanical Properties of Fluids Question with Solution

JEE Main 2020 (03 Sep Shift 1)

Question

Pressure inside two soap bubbles are 1.01 and 1.02 atmosphere, respectively. The ratio of their volumes is :

Choose an option

Show full solutionCorrect option: C
Correct answer
C8:1

Step-by-step explanation

Excess pressure inside a soap bubble is 4TR. Therefore,

P1-P0=4TR1=0.01 atm

P2-P0=4TR2=0.02 atm

Dividing,

12=R2R1

⇒R1=2R2

⇒V1V2=R13R23=8R23R23=81

 

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About this question

This is a previous-year question from JEE Main 2020, covering the Mechanical Properties of Fluids 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.