Haryana PMT Haryana PMT Solved Paper-2009

  • question_answer
    When two sinusoidal waves moving at right angle to each other superimpose, they produce

    A)  beats                                   

    B)  interference

    C)  stationary waves            

    D)  Lissajous figure

    Correct Answer: D

    Solution :

                    If two SHMs act in perpendicular directions, then their resultant motion is in the form of a straight line or a circle or a parabola etc, depending on the frequency ratio of the two SHMs and their initial phase difference. These figures are Lissajous figures.


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