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  3. 8th Class
  4. Science

8th Class Science Sample Paper Science Olympiad Model Test Paper-15

  • question_answer
    Which of the following can change the focal length of eye lens according to the requirement of the eye to see distant objects or nearby objects?

    A) Iris

    B) Pupil

    C) Ciliary muscles

    D) Retina

    E) None of these

    Correct Answer: C

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