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Homework Help: Diffraction of sound wave

  1. Apr 22, 2016 #1
    1. The problem statement, all variables and given/known data
    Write an experiment to demonstrate the diffraction of a sound wave and specify what has to observe to conclude that wave has been diffracted

    2. Relevant equations

    3. The attempt at a solution
    I know that we've to create diffraction by using a speaker and a slit and a microphone connected to a cro. I dont know what is changed after the wave has been diffracted so we can conclude that wave has been diffracted
  2. jcsd
  3. Apr 22, 2016 #2


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    Gold Member

    If there was no diffraction, the sound might emerge from the slit as a parallel beam. But it doesn't.
  4. Apr 22, 2016 #3


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    Staff: Mentor

    Hint -- are you familiar with what happens in multiple-slit experiments (with light or sound or other waves)?

    http://sciencevault.net/11hscphys/82worldcommunicates/822 Sound.htm

  5. Apr 23, 2016 #4
    I know all the theory but I am asking what results should I portray so I can conclude to an another person the wave has diffracted
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