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A length of organ pipe is closed at one end.
If the speed of sound is 344 m/s, what length of pipe is needed to obtain a fundamental frequency of 74 Hz?
Answer in units of m.

  • physics -

    The closed end provides a reflection that is 180 degrees phase shift, so the path up, and the path back must provide 180 degrees total, or the pipe is lambda/4 in length.

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