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How can standing waves be created on a string fixed at both?

  1. Jun 8, 2015 #1
    Hello. So I am having some trouble answering this question and I would really appreciate some help.

    I figure I should probably first define what standing waves are and I know that they are the result of the repeated interference of two waves of identical frequency while moving in opposite directions along the same medium or in this case, the string.

    Im just not sure how to answer the question. I know that in order the there to be a standing wave, the string needs to be moving or vibrating but Im not sure where fixed at both ends comes in.
  2. jcsd
  3. Jun 8, 2015 #2


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    If the string is fixed at both ends then the waves cannot have been generated by wiggling the endpoints. They could have been generated by driving the string in the middle (for instance with a guitar pick). Or they could have always been there.
  4. Jun 8, 2015 #3
    Hello, are you familiar with any stringed musical instruments?
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