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Homework Help: Quick conceptual help!

  1. Nov 14, 2004 #1
    Ok, I don't understand why in a sound resonating pipe, that the in the closed end there needs to be a node and not antinode. Why?
     
  2. jcsd
  3. Nov 14, 2004 #2

    Hurkyl

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    IIRC, you want to look at the reflected wave.
     
  4. Nov 14, 2004 #3
    huh? Can you elaborate?
     
  5. Nov 14, 2004 #4

    Hurkyl

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    Sorry, my mistake, I was thinking of a transverse wave, not a longitudinal wave.


    Recall that nodes are where the particles do not oscilate about their rest position... does that help?
     
  6. Nov 14, 2004 #5
    Right. I get that. But what would it make a difference if i had a anti-node instead on a closed pipe?
     
  7. Nov 14, 2004 #6

    Hurkyl

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    Well, it's kind of difficult for air particles to oscillate through the pipe...
     
  8. Nov 14, 2004 #7
    wait. Ok imagine the pipe, it has a plunger and an open side on the opposite end. Why would air particles have trouble? It is coming from the open side or the anti-node side.
     
  9. Nov 14, 2004 #8

    Hurkyl

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    When I said through, I meant through the closed end.
     
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