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Homework Help: Wave problem in Physics

  1. May 18, 2004 #1
    From the figure, please see the attachment. Which particles vibrate in phase with particle b and why?
    Can I say that particle c and d vibrate in phase with particle b?

    Another question: What is the function of the spongy lining at the edges of ripple tank when we generate water wave in the ripple tank?
     

    Attached Files:

  2. jcsd
  3. May 19, 2004 #2

    HallsofIvy

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    Science Advisor

    Assuming that you mean you picture to represent a wave with the two endpoints fixed, then d is in phase with b (they will always be at the same height). c is not.

    As for the spongy lining, it is there to absorb the wave so you won't have reflections confusing the situation.
     
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