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Punjab Medical Punjab - MET Solved Paper-2003

  • question_answer
    A resonance air column of length \[40\,\,cm\] resonates with a tuning fork of frequency\[450\,\,Hz\]. Ignoring end correction, the velocity of sound in air will be:

    A) \[1020\,\,m/s\]                

    B) \[920\,\,m/s\]

    C) \[820\,\,m/s\]                  

    D) \[720\,\,m/s\]

    Correct Answer: D

    Solution :

    Here: length of column\[=40\,\,cm=0.4\,\,m\] Frequency of tuning fork\[=450Hz\] Using the formula\[n=\frac{v}{4l}\] or            \[v=450\times 4\times 0.4=720\,\,m/s\]


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