JEE Main 2021PhysicsOscillationsEasyNumerical

JEE Main 2021 — Oscillations Question with Solution

JEE Main 2021 (26 Aug Shift 2)

Question

Two simple harmonic motions are represented by the equations x1=5sin2πt+π4 and x2=52(sin2πt+cos2πt). The amplitude of the second motion is _____ times the amplitude in the first motion.

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Show full solutionCorrect answer: 2
Correct answer
2

Step-by-step explanation

A1=5

x2=52[sin2πt+cos2πt]

x2=10sin2πT+π4

A2=10

A2=2 A1

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About this question

This is a previous-year question from JEE Main 2021, covering the Oscillations 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.