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What type of wave is described by this equation

  1. Jun 13, 2015 #1
    1. The problem statement, all variables and given/known data
    x = (0.15 mm) cos (210x-120t)
    what type of wave is described by this equation?

    Longitudinal, transverse, angular frequency or both transverse and longitudinal

    2. Relevant equations

    3. The attempt at a solution
    Theres really no calculation. I thinking its longitudinal because it is given as "x=". if it were transverse im thinking it would be given as "y="
    At the same time im not even sure if im right
  2. jcsd
  3. Jun 13, 2015 #2
    Some BS equation you got there.
  4. Jun 14, 2015 #3


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    Taking the equation literally, with x on both sides, I don't recognise it as any of the usual wave equations. E.g. For a longitudinal wave, the x on the right would be the mean position of an oscillating segment, while the x on its left would be its displacement at time t; i.e. they should be two different variables.
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