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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 31

  • 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 -

    A) 153.8 Hz        

    B)        160.0 Hz

    C) 320.0 Hz        

    D)        143.2 Hz

    Correct Answer: B

    Solution :

    [b] \[{{n}_{Closed}}=\frac{1}{2}\left( {{n}_{open}} \right)=\frac{1}{2}\times 320=160\,Hz\]


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