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J & K CET Medical J & K - CET Medical Solved Paper-2013

  • question_answer
    The fundamental frequency of an open pipe of length 1 m, if the speed of sound in air is 340 m/s is

    A)  340 Hz           

    B)  170 Hz

    C)  680 Hz           

    D)  85 Hz

    Correct Answer: B

    Solution :

     For open pipe, \[v=\frac{v}{2l}\] Given, \[v=340\text{ }m/s,\text{ }l=1\text{ }m\] \[\therefore \] \[v=\frac{340}{2\times 1}=170\,Hz\]


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