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Question

The figure illustrates correction of vision for a certain defect of human eye. Identify the defect which is corrected here.

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A
Myopia
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B
Hypermetropia
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C
Astigmatism
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D
Nigh Blindness
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Solution

The correct option is B Hypermetropia
The defect corrected here is Hypermetropia or far-sightedness. In Hypermetropia, light rays from nearby objects are focused by the eye-lens at a point behind the retina. To correct this defect, a convex lens of appropriate power is used. The presence of this convex lens helps the light rays to get focused on the retina.

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