2. Sample Papers
  3. 9th Class
  4. Science

9th Class Science Sample Paper Science Olympiad Model Test Paper-6

  • question_answer
    The frequency of source of a sound is 100 Hz. How many times does it vibrate in one hour?

    A) 3600 vibrations

    B) 36000 vibrations

    C) 360000 vibrations

    D) 100000 vibrations

    E) None of these

    Correct Answer: C

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