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9th Class Science Sound Question Bank Sound Formative Objective Problems

  • question_answer
    A tuning fork produces 256 waves in 2 seconds. Calculate the frequency of the tuning fork.

    A)  1.120 Hz             

    B)  125 Hz

    C)  128 Hz          

    D)  130 Hz

    Correct Answer: C

    Solution :

      In 2 seconds, the number of waves produced = 256 \[\therefore \]in 1 second the number of waves produced\[=\frac{256}{2}=128\] Therefore Frequency of the tuning fork = 128 Hz.            


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