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NEETPhysicsWaves and Sound

A transverse sinusoidal wave moves along a string in the positive x -direction at a speed of 10 ~cm / s . The wavelength of the wave is 0.5 ~m and its amplitude is 10 ~cm . At a particular time t , the snap-shot of the wave is shown in figure. The velocity of point P when its displacement is 5 ~cm is

Options

  1. A3 50 j m / s
  2. B- 3 50 j ~m / s
  3. C3 50 i m / s
  4. D- 3 50 i m / s

Correct answer

A. 3 50 j m / s

Step-by-step solution

Particle velocity v_p=-v (slope of y-x graph) Here, v=+v e , as the wave is travelling in positive x -direction. Slope at P is negative. Velocity of particle is in positive y(+ j ) direction. correct option is (a).

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