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QJEEM19Ph5908: JEE Main 2019 Physics - Class 11 JEEM19Ph5908 Solution: A progressive wave travelling along the positive x-direction is …

A progressive wave travelling along the positive x-direction is represented by y(x,t) = Asin(kx – ωt + ϕ). Its snapshot at t = 0 is given in the figure. JEE Main 2019 (Online) 12th April Morning Slot Physics - Waves Question 85 English
For this wave, the phase ϕ is :

Multiple Choice Options

  • A π2
  • B π
  • C 0
  • D −π2

Step-by-Step Verified Solution

y = A sin (kx – wt + φ)

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

⇒φ=π

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