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Attenuation of em waves- unknown relationship help.

  1. Apr 23, 2013 #1
    Sorry if this is in the wrong place. Was not sure what it is categorised as.

    I have come across the following:[itex]e^{-\frac{\omega}{c} nkz}[/itex], referring to attenuation of a wave.

    It was found here:


    I have been unable to find this anywhere else. I was wondering if anyone else has seen it before and if so where I may find more info about it. Is anyone able to suggest what the symbols represent?
  2. jcsd
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