Q121 / 150 · MHT CET 2007 · Physics

A pulse of a wave train travels along a stretched string and reaches the fixed end of the string. It will be reflected back with

  • A
    a phase change of $180^{\circ}$ with velocity reversed
  • B
    the same phase as the incident pulse with no reversal of velocity
  • Correct answer
    C
    a phase change of $180^{\circ}$ with no reversal of velocity
  • D
    the same phase as the incident pulse but with velocity reversed

Solution

A pulse of a wave train when travels along a stretched string and reaches the fixed end of the string, then it will be reflected back to the same medium and the reflected ray suffers a phase change of $\pi$ with the incident wave but wave velocity after reflection does not change.

Hence, the correct answer is option: 'C'.

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