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

  • question_answer
    What is the base frequency if a pipe gives notes of frequencies 425, 255 and 595 and decide whether it is closed at one end or open at both ends           [UPSEAT 2001]

    A) 17, closed                              

    B)  85, closed

    C) 17, open                                

    D) 85, open

    Correct Answer: B

    Solution :

    Let the base frequency be n for closed pipe then notes are \[n,\ 3n,\ 5n.....\]                  note \[3n=255\] Þ\[n=85\], note \[5n=85\times 5=425\]            note \[7n=7\times 85=595\]


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