Railways General Science & Technology Ray Optics Sample Paper Ray Optics Sample Test Paper-6

  • question_answer
    A normal eye is not able to see objects closer than 25 cm because

    A)  The focal length of the eye is 25 cm

    B)  The distance of the retina from the eye-lens is 25 cm

    C)  The eye is not able to decrease the distance between the eye-lens and the retina beyond a limit

    D)  The eye is not able to decrease the focal length beyond a limit

    Correct Answer: D

    Solution :

    [d] Because, the focal length of eye lens cannot decreased beyond a certain limit.


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