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Young's equation and longitudinal waves

  1. Feb 15, 2016 #1


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    I have learnt at school that we can use Young's equation
    Lambda = ax/D
    to calculate the wavelength of light from an interference pattern
    I'm wondering if this equation also works for longitudinal waves?

    Thank you for your help
  2. jcsd
  3. Feb 15, 2016 #2
    Yes it does, the wavelength of sound waves is measured in this way.
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