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JEE Main20258 Apr 2025Evening ShiftPhysicsOscillationsActual

The amplitude and phase of a wave that is formed by the superposition of two harmonic travelling waves, y ₁( x , t )=4 ( kx - t ) and y ₂( x , t )=2 ( kx - t + 2 3 ) , are : (Take the angular frequency of initial waves same as )

Options

  1. A[6, 2 3 ]
  2. B[6, 3 ]
  3. C[ 3 , 6 ]
  4. D[2 3 , 6 ]

Correct answer

D. [2 3 , 6 ]

Step-by-step solution

aligned & array l A = 2^2+4^2+2 2 4 120^ = 12 =2 3 = 2 120^ 4+2 120^ = 3 3 = 1 3 = 6 array aligned

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