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10th Class Science Human Eye and Colourful World Question Bank Human Eye and Colourful World

  • question_answer
    Observe the given diagram carefully. What could be the causes of this defect?
    (i) The focal length of the eye lens is too long.
    (ii) The eyeball becomes too small.
    (iii) The focal length of the eye lens is too small.
    (iv) The eyeball becomes too long.
     

    A) Only (i) and (ii)

    B) Only (i) and (iv)

    C) Only (ii) and (iii)

    D) Only (iii) and (iv)

    Correct Answer: A

    Solution :

    Diagram shows hypermetropia. This defect arises either because the focal length of the eye lens is too long or the eyeball has become too small.


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