JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 27 June 2022, Shift 1, Physics Q45

Question 45 of 90 in this shift, Physics question 15 of 30, Section A.

The displacement of simple harmonic oscillator after 3 seconds starting from its mean position is equal to half of its amplitude. The time period of harmonic motion is :

(1)6 s
(2)8 s
(3)12 s
(4)36 sOfficial answer

Official answer

Option 4

NTA final key.

Chapter: Oscillations
Topic: SHM Equations
Idea tested: Phase and Initial Conditions

Same idea in other shifts

Asked 4× in all

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22 Jul 2021, Shift 2 · Q9The motion of a mass on a spring, with spring constant K is as shown in figure. The equation of motion is given by…MediumSingle correctHas a figure

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 108 of the 174 JEE Main shifts held from 2017 to 2026.