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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2003

  • question_answer
    Find the fundamental frequency of a closed pipe, if the length of pipe is 1 m. (speed of sound in air = 320 m/s)

    A)  320 Hz          

    B)  160 Hz

    C)  80 Hz           

    D)  40 Hz

    Correct Answer: C

    Solution :

     \[n=\frac{v}{4l}=\frac{320}{4\times 1}=80Hz\]


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