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Thread: 2 SHM at right angles

  1. #1 2 SHM at right angles 
    Forum Freshman
    Join Date
    Jun 2006
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    When 2 simple harmonic motions are applied to a particle at right angles to each other having time periods in the ratio 1:2, you get a figure of eight. When the phase difference is (pi)/4,3(pi)/4,... you don't get a perfect figure of eight.Can it be called a distorted eight or is there any other name? I would like to follow the nomenclature that is universally accepted.That is why I asking.Thanx in advance.


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  3. #2  
    Forum Professor river_rat's Avatar
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    Hi photon. What you are thinking of is called a Lissajous figure.

    You can play with drawing a few here - http://www.geocities.com/Area51/Quad...hlissajous.htm


    As is often the case with technical subjects we are presented with an unfortunate choice: an explanation that is accurate but incomprehensible, or comprehensible but wrong.
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