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9th Class Science Sound Question Bank Sound HOTS Objective Problems

  • question_answer
    The position versus time graph of a particle in a wave is shown in the given figure.
    The parameter of the wave denoted by a is known as its

    A)  wavelength      

    B)  amplitude

    C)  frequency                         

    D)  origin

    Correct Answer: B

    Solution :

      In the given figure, parameter a denotes the maximum displacement of the particle from its mean position. Therefore, variable a denotes the amplitude of a wave. The correct answer is B.


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