9th Class Science Sample Paper Science Sample Paper-2

  • question_answer
    Which of the following statements is/are incorrect?

    A) The minimum distance in which a sound wave repeats itself is called wavelength

    B) Combined length of a compression and an adjacent rarefaction in a sound wave is called wavelength

    C) Distance between the centres of two consecutive compressions in a sound wave is called wavelength

    D) The length of one complete wave is called wavelength

    E) None of these

    Correct Answer: C


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