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Lissajou's figure

  1. Oct 26, 2009 #1
    1. The problem statement, all variables and given/known data

    The problem in which I have difficulty has been posted as an attachment. It is based on Lissajou's figure. In the given problem, the ratio of the frequency is 1:2 but nothing has been mentioned about the phase difference. As far as my knowledge goes, the corresponding Lissajou's figure can either be a parabola or a figure of eight. The difficulty that I am facing is that, both the options are given. Is there any additional information that I have failed to notice in the question? Any help is most welcome.

    2. Relevant equations

    3. The attempt at a solution

    Attached Files:

  2. jcsd
  3. Oct 26, 2009 #2


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    Staff: Mentor

    If it were a figure 8, which way would the figure 8 be oriented?
  4. Oct 26, 2009 #3
    As I read the question, three could be more than 1 correct option, but take good look
    at that figure 8.
  5. Oct 27, 2009 #4
    Do u mean that the figure 8 should have been aligned in the horizontal plane? Hence the more appropriate answer is the parabola. Am I heading in the right direction now?
  6. Oct 27, 2009 #5


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    Staff: Mentor

    It's not a parabola, but about the figure 8, yes.
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