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9th Class Science Sound Question Bank Sound HOTS Objective Problems

  • question_answer
    Two simple waves are shown in the given figure.
    It can be concluded from given waves that the

    A)  wavelength of wave I is greater than that of wave II

    B)  frequency of wave I is greater than that of wave II

    C)  amplitude of wave I is less than that of wave II

    D)  period of wave I is less than that of wave II

    Correct Answer: A

    Solution :

      The distance between two consecutive crests or troughs is known as the wavelength of a wave. It is clear from the given figure that the distance between two consecutive crests of wave I is greater than that between two consecutive crests of wave II. Hence, it can be concluded that the wavelength of wave I is greater than that of wave II. The correct answer is A.


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