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

  • question_answer
    The frequency of fundamental tone in an open organ pipe of length 0.48 m is 320 Hz.  Speed of sound is 320 m/sec. Frequency of fundamental tone in closed organ pipe will be        [MP PMT 2003]

    A)            153.8 Hz                                 

    B)            160.0 Hz

    C)            320.0 Hz                                 

    D)            143.2 Hz

    Correct Answer: B

    Solution :

               \[{{n}_{\text{Closed}}}=\frac{1}{2}({{n}_{\text{Open}}})=\frac{1}{2}\times 320=160\,Hz\]


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