JEE Main 2010 — Electrostatics Question with Solution
JEE Main 2010
Question
Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of with each other. When suspended in a liquid of density , the angle remains the same. If density of the material of the sphere is , the dielectric constant of the liquid is
Choose an option
Show full solutionCorrect option: C
Correct answer
C2
Step-by-step explanation
From F.B.D of sphere, using Lami's theorem
when suspended in liquid, as remains same,
using (i) and (ii)
or
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This is a previous-year question from JEE Main 2010, covering the Electrostatics 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.