1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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: Standing Wave harmonics

  1. Nov 24, 2009 #1
    Why does half a wave length and not a full wave length constitute the first harmonic?



    v=[tex]\lambda[/tex]f



    because a standing waves can be made with two half waves travelling in opposite directions?
     
  2. jcsd
  3. Nov 24, 2009 #2
    Here is a good resource on http://www.physicsclassroom.com/Class/waves/U10L4e.cfm" [Broken].

    Basically you are right, but your terminology isn't quite correct. The wavelength is the length up and back the string, so [itex]\lambda=2L\rightarrow L=\frac{1}{2}\lambda[/itex].
     
    Last edited by a moderator: May 4, 2017
  4. Nov 24, 2009 #3
    Thanks a lot, that helped :smile:
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook