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

  • question_answer
    Find the fundamental frequency of a closed pipe, if the length of the air column is 42 m. (speed of sound in air = 332 m/sec)                                                        [RPET 2003]

    A)            2 Hz                                          

    B)            4 Hz

    C)            7 Hz                                          

    D)            9 Hz

    Correct Answer: A

    Solution :

               For closed pipe \[n=\frac{v}{4l}\]\[\Rightarrow \]\[n=\frac{332}{4\times 42}=2Hz\].


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