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How do you find frequency given this wave graph?

  1. Apr 21, 2013 #1
    1. The problem statement, all variables and given/known data

    How do you find wavelength given this wave graph? [ignore my title please]


    2. Relevant equations

    c= (wavelength)(frequency)


    3. The attempt at a solution

    I always see displacement (y) vs distance (x) graph, but this one is displacement (x) vs t

    I'm kinda confused how you solve for the wavelength

    can someone help me with interpreting this graph?

    I know the question is asking for frequency, but is it possible to figure out the wavelength given this graph?
     

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  3. Apr 22, 2013 #2

    ehild

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    The problem asks the frequency. You get the wavelength if you know the speed of the wave in that medium, but it is not given.

    ehild
     
  4. Apr 22, 2013 #3


    ok thanks
     
  5. Apr 22, 2013 #4

    SammyS

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    attachment.php?attachmentid=58092&d=1366605292.png
    You can't solve for wavelength.

    The particle moves back and forth periodically. What's the period of that motion?
     
  6. Apr 22, 2013 #5
    I got the answer.
    1 wave is 0.05 sec

    frequency is the the number of cycles per sec
    so here 1 cycle / 0.05 sec
    so 1 sec/ 0.05 = 20
     
  7. Apr 22, 2013 #6

    SammyS

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    What units ?
     
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