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Resonance frequency

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  1. Sep 13, 2016 #1
    I wonder of the air has resonance frequency or not, if yes what would happen if we excite it at this frequency
     
  2. jcsd
  3. Sep 13, 2016 #2

    Merlin3189

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    The molecules in air, O2 and N2 both have many resonances, as do the minority constituents. For eg. both have resonances in the UV band and this provides some protection against UV radiation from the Sun. Oxygen has resonance in the region of 60GHz limiting the range of radio signals in this band.

    There may be many others. Generally the effect is that radiation at resonant frequencies is absorbed and dissipated as heat or reradiated at lower frequencies.
     
  4. Sep 15, 2016 #3

    Mech_Engineer

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    If you mean pressure wave resonance, this may be of interest to you: http://hyperphysics.phy-astr.gsu.edu/hbase/waves/opecol.html

     
  5. Sep 15, 2016 #4

    JBA

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    Mech_Engineer, Your reference appears to me to also be an excellent reference for those investigating and trying to understand the mechanics of tuned intake and exhaust systems on engines.
     
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