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

  • question_answer
    If the velocity of sound in air is 336 m/s. The maximum length of a closed pipe that would produce a just audible sound will be      [KCET 2001]

    A)            3.2 cm                                     

    B)            4.2 m

    C)            4.2 cm                                     

    D)            3.2 m

    Correct Answer: B

    Solution :

               Minimum audible frequency = 20 \[Hz\].                    \[\Rightarrow \] \[\frac{v}{4l}=20\Rightarrow l=\frac{336}{4\times 20}=4.2\]\[m\]


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