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  3. 10th Class
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  5. Light - Reflection and Refraction

10th Class Science Light - Reflection and Refraction Question Bank Light - Reflection and Refraction

  • question_answer
    Which of the following does NOT affect the focal length of a convex lens?

    A) Refractive index of the material for making the lens

    B) Material of the lens

    C) Object distance

    D) Thickness of the lens

    Correct Answer: C

    Solution :

    The object distance does not affect the focal length which is a property of the lens.


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