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Homework Help: Interesting Wave Problem

  1. May 10, 2008 #1


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    1. The problem statement, all variables and given/known data


    2. Relevant equations

    wave velocity = frequency * wave length

    3. The attempt at a solution

    Well...I'm not sure. I know how you could find the distance to the person to the right using trigonometric, but I don't know how to actually answer the question (mathematically). Interference might have something to do with it?
  2. jcsd
  3. May 10, 2008 #2
    The width of the doorway (in wavelengths) should be important.

    Consider having one whistle, and two echos (one from each side).


  4. May 10, 2008 #3


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    Homework Helper

    Yes; the sound wave is passing through a wide slit, so this is a single-slit diffracion problem.
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