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Absorptive type sound insulation

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  1. Apr 26, 2015 #1
    Could you tell me the physical reason, why the absorptive type sound insulation (Windowpane with some thickness) is effective only at high frequencies of sound source?
     
  2. jcsd
  3. Apr 26, 2015 #2

    billy_joule

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    Do you know what happens to wavelength as frequency increases?
     
  4. Apr 26, 2015 #3
    Yes. the wave length reduces as frequency increases.
     
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