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

8th Class Science Sample Paper Science Olympiad Model Test Paper-4

  • question_answer
    Two lens of power 4.5 D and - 3.5 D are combined together. Find the power and the focal length of the combined lens.

    A) 2 D and 1 m

    B) 3 D and 2 m

    C) 1 D and 1 m

    D) 2 D and 2 m

    E) None of these

    Correct Answer: C

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