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Homework Help: Standing Waves

  1. Jan 25, 2010 #1
    1. The problem statement, all variables and given/known data

    Am I right when i say, "Standing waves are produced by the superposition of two waves with the same amplitude and frequency, and opposite propagation directions".

    If I am then why would it not be, the same amplitude and direction of propagation, but different frequencies??

    Thanks for any help in advance.

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Jan 26, 2010 #2


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    Homework Helper

    Stranding waves are formed by the reflection of the waves from a source. And the reflection does not change the frequency. A single source cannot produce two different frequencies. Two independent sources cannot produce standing waves.
  4. Feb 3, 2010 #3
    I just posted an in depth answer to your question in a related thread here: https://www.physicsforums.com/showthread.php?t=373374

    (my) post #6

    Hope you read it for clarification as it probably will answer your question more completely/thoroughly

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