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

  • question_answer
    An empty vessel is partially filled with water, then the frequency of vibration of air column in the vessel [KCET 2000]

    A)            Remains same

    B)            Decreases

    C)            Increases

    D)            First increases then decreases

    Correct Answer: C

    Solution :

               For closed pipe in general \[n=\frac{v}{4l}(2N-1)\]Þ \[n\propto \frac{1}{l}\]                    i.e. if length of air column decreases frequency increases.


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