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Which defect of vision is corrected by a convex lens?
AMyopia
BColour blindness
CHypermetropia
DCataract
Answer & Solution
Correct answer: C. Hypermetropia
1. Hypermetropia means the eye can focus only on distant objects.
2. Near rays form an image behind the retina.
3. A convex (converging) lens brings rays together before they enter the eye.
4. The image now forms on the retina.
5. So hypermetropia needs a convex lens for correction.
_Source: NCERT Class 10 Science Ch 11 'Human Eye and the Colourful World'_
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