JEE Main 2019 — Rotational Motion Question with Solution
From: JEE Main 2019 (Online) 8th April Evening Slot
Question
An electric dipole is formed by two equal and
opposite charges q with separation d. The
charges have same mass m. It is kept in a
uniform electric field E. If it is slightly rotated
from its equilibrium orientation, then its angular
frequency is :-
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Moment of inertiaNow by
for small
Angular frequency
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This is a previous-year question from JEE Main 2019, covering the Rotational Motion 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.