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  3. 7th Class
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7th Class Science Sample Paper Science Olympiad Model Test Paper-15

  • question_answer
    A simple pendulum takes 20 s to complete 72 oscillations. What is the time period of this pendulum?

    A) 3.6 s    

    B) 7.2 s

    C) 1.2 s    

    D) 4.5 s

    E) None of these

    Correct Answer: E

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