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प्रश्न
What kind of lens is used to correct
long-sightedness?
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उत्तर
Convex lenses are used to correct long-sightedness.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
What kind of lens is used to correct
long-sightedness?
Convex lenses are used to correct long-sightedness.