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Wave mechanics

  1. Aug 27, 2008 #1
    Can anyone validate that phase always decreases in the direction of propagation of wave?

    Also if i have a sonometre wire in which i develop a transverse wave using a tuning fork and then i immerse the weight into water i.e change the tension, will the frequency also change? I mean frequency only depends on source right?
  2. jcsd
  3. Aug 27, 2008 #2
    No replies?
  4. Aug 27, 2008 #3
    In meta-materials I think the phase velocity can become negative. So, no.

    As for your second question.. likely depends how quickly you alter the tension.
  5. Aug 27, 2008 #4
    Srry but I dont quite follow both your answers. And in the first question I am talking about the simple cases of a plane elastic wave .
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