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  3. 9th Class
  4. Science

9th Class Science Sample Paper Science Olympiad Model Test Paper-15

  • question_answer
    A ball is dropped from the edge of a roof. It takes 0.1 s to cross a window of height 2m. Find the height of the roof above the top of the window.

    A) 18.7 m

    B) 19.6 m

    C) 20.8 m

    D) 17.3 m

    E) None of these

    Correct Answer: B

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