Which defect of vision is correctly matched with its correcting lens? MCQ with Answer and Explanation

Which defect of vision is correctly matched with its correcting lens?
A. Myopia - Convex lens
B. Hypermetropia - Concave lens
C. Myopia - Concave lens
D. Presbyopia - Cylindrical lens
Answer: Option C
Solution (By JKSSB Mock Tests)
Myopia (near-sightedness) occurs when the image is focused in front of the retina. It is corrected using a concave (diverging) lens. Hypermetropia (far-sightedness) is corrected with a convex (converging) lens. Astigmatism is corrected with a cylindrical lens. Presbyopia is usually corrected with bifocal lenses.

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A body of volume 100 cm³ and density 0.8 g/cm³ floats in water. Volume submerged is
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