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Most Important Selected Qs for JEE AdvancedPhysicsWaves and Sound

Shape of string transmitting wave along x axis at some instant is shown Velocity of point P is v=4 ~cm / s and = ⁻¹(0.004 )

Options

  1. AAmplitude of wave is 2 mm
  2. BVelocity of wave is 10 ~m / s
  3. CMax acceleration of particle is 80 ^2 cm / sec ^2
  4. DWave is traveling in -ve x-direction

Correct answer

D. Wave is traveling in -ve x-direction

Step-by-step solution

aligned & =1 ~m & v _ = A =4 & v = y / t y / x = 4 10⁻² 4 10⁻³ =10 ~m / s & A =2 10⁻³ ~m also v = v =10 ~Hz and a _ = A ^2=80 ~cm / s ^2 aligned

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