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Homework Help: Does Amp=0 imply that a wave has 0 speed?

  1. Apr 21, 2008 #1
    1. The problem statement, all variables and given/known data

    Will a wave with an amplitude of 0 have any velocity?

    2. Relevant equations

    V=F(lambda) E=kA^2

    3. The attempt at a solution

    I think the wave dissappears because if it carries no energy then it ceases to be a wave, but Im not sure though.
  2. jcsd
  3. Apr 21, 2008 #2


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    Staff Emeritus
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    Gold Member

    You are correct :approve:.

    In a little more detail the solution y(x,t)=0, is the trivial solution of the wave-equation and is not usually considered to be physically meaningful.
  4. Apr 21, 2008 #3
    thank you.
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