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

8th Class Science Sample Paper Science Olympiad Model Test Paper-19

  • question_answer
    If focal length of a convex lens is 50 cm, what will be the power of the lens.

    A) 5 diopter

    B)  4 diopter

    C) 6 diopter

    D) 2 diopter

    E) None of these

    Correct Answer: D

You need to login to perform this action.
You will be redirected in 3 sec spinner