JEE Main 2019PhysicsWaves and SoundMediumMCQ

JEE Main 2019Waves and Sound Question with Solution

JEE Main 2019 (12 Apr Shift 1)

Question

A progressive wave travelling along the positive x- direction is represented by yx,t=A sin(kx-ωt+ϕ) . Its snapshot at t=0 is given in the figure.

For this wave, the phase ϕ is:

Choose an option

Show full solutionCorrect option: C
Correct answer
Cπ

Step-by-step explanation

y=Asin(kx-ωt+ϕ)

at x=0, t=0, y=0 and slope is negative

ϕ=π 

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About this question

This is a previous-year question from JEE Main 2019, covering the Waves and Sound 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.