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9th Class Science Sound Question Bank Sound HOTS Objective Problems

  • question_answer
    Amanda labels some points on the figure of a wave in her physics book.
    The crest of the wave is marked by which, letter?

    A)  P                           

    B)  Q  

    C)  R                                           

    D)  S

    Correct Answer: A

    Solution :

      In order to answer this question, the student must know the various parts of a wave. Crest is defined as the portion of a wave that rises above the mean or undisturbed position. Hence, the crest of the wave is marked by letter P. The correct answer is A.               


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