# Homework Help: Lissajou's figure

1. Oct 26, 2009

### Amith2006

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

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2. Oct 26, 2009

### Staff: Mentor

If it were a figure 8, which way would the figure 8 be oriented?

3. Oct 26, 2009

### willem2

As I read the question, three could be more than 1 correct option, but take good look
at that figure 8.

4. Oct 27, 2009

### Amith2006

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?

5. Oct 27, 2009

### Staff: Mentor

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