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  3. 9th Class
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  5. Sound

9th Class Science Sound Question Bank Sound HOTS Objective Problems

  • question_answer
    Two different waves, I and II, are produced on two strings, as shown in the given figure.
    The given waves have equal

    A)  wavelengths    

    B)  Frequencies

    C)  Amplitudes   

    D)  Periods

    Correct Answer: C

    Solution :

      In order to answer this question, the student should compare the physical characteristics of the given waves. The maximum disturbance of waves I and II are equal. Hence, their amplitudes are the same. The correct answer is C.               


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