2. Sample Papers
  3. 10th Class
  4. Science

10th Class Science Sample Paper Science Olympiad Model Test Paper-2

  • question_answer
    Focal length of a convex lens is 20 cm. Find the power of the lens.

    A) 4 D

    B) 6 D

    C) 20 D

    D) 5 D

    E) None of these

    Correct Answer: D

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