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Friday, 9 October

JEE Main 2021 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 25 July 2021, Shift 1, Physics Q28

Question 28 of 90 in this shift, Physics question 28 of 30, Section B.

A particle of mass 1 mg and charge q is lying at the mid-point of two stationary particles kept at a distance '2 m' when each is carrying same charge 'q'. If the free charged particle is displaced from its equilibrium position through distance 'x' (x≪1x\ll1 m). The particle executes SHM. Its angular frequency of oscillation will be _________×105\times10^5 rad/s if q2=10 C2q^2=10\ \mathrm{C}^2.

Official answer

6000

NTA final key.

Chapter
Electric Charges and Fields
Topic
Coulomb's Law
Idea tested
Small Oscillations of a Displaced Charge

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.