2. Sample Papers
  3. 8th Class
  4. Science

8th Class Science Sample Paper Science Olympiad Model Test Paper-20

  • question_answer
    What is the frequency of a vibrating body whose time-period is 0.05 second?

    A) 20 hertz

    B) 50 hertz

    C) 100 hertz

    D) 120 hertz

    E) None of these

    Correct Answer: A

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