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    Question

    A tuning fork of frequency 440 Hz resonates with a pipe

    closed at one end, vibrating in its second overtone . If the speed of sound in air is 330 m/s, what is the length of the pipe (neglecting end correction)?
    A 18.75 cm Correct Answer Incorrect Answer
    B 93.75 cm Correct Answer Incorrect Answer
    C 62.5 cm Correct Answer Incorrect Answer
    D 75.0 cm Correct Answer Incorrect Answer

    Solution

    For a pipe closed at one end, the resonant frequencies are given by:

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