Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Sinusoidal wave

  1. Apr 4, 2007 #1
    1. The problem statement, all variables and given/known data
    A sinusodial wave is moving along a string of uniform density. If you double the frequency of the wave,

    a)the speed of the wave doubles
    b)the speed of the wave remains about the same


    2. Relevant equations
    v=lambda*f


    3. The attempt at a solution
    I chose a) using the equation v=lambda*f. as f doubles, v doubles too.
     
  2. jcsd
  3. Apr 4, 2007 #2

    Doc Al

    User Avatar

    Staff: Mentor

    That would only be true if the wavelength remained the same.

    What determines the speed of a wave on a string?
     
  4. Apr 4, 2007 #3
    tension and density.

    The answer is b)
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook