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JEE Main & Advanced Physics Wave Mechanics Question Bank Organ Pipe (Vibration of Air Column)

  • question_answer
    A student determines the velocity of sound with the help of a closed organ pipe. If the observed length for fundamental frequency is 24.7 m, the length for third harmonic will be  [RPET 2002]

    A)            74.1 cm                                   

    B)            72.7 cm

    C)            75.4 cm                                   

    D)            73.1 cm

    Correct Answer: A

    Solution :

               \[{{l}_{2}}=3{{l}_{1}}=3\times 24.7=74.1\,cm\]


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