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Resonance frequencies question (first and second resonance frequencies)

  1. Dec 16, 2011 #1
    Trying to figure out how to go about solving this question, using these forumlas i tried to solve it but i didnt get the right answers

    for frequency 1 i went with

    f1=v/2L

    for frequency 2 i went with

    f2=v/L


    any ideas on how to solve this?
     

    Attached Files:

  2. jcsd
  3. Dec 16, 2011 #2

    AlephZero

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    Science Advisor
    Homework Helper

    The question says the whistle is closed at one end.

    You had the right idea about how to answer the question, but you used the wrong formulas.
     
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