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9th Class Science Sample Paper Science Olympiad Model Test Paper-9

  • question_answer
    A sound wave is travelling in the air with the speed of\[340\text{ }m/s\]. If frequency of the sound wave is 500 hertz find its wavelength.

    A) 0.68 m

    B) 0.70 m

    C) 0.72 m

    D) 0.74 m

    E) None of these

    Correct Answer: A

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