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Science · 2023 · 3 marks
CBSE 2023 · Region 4 · Set 2 · Q29
List two differences in the characteristic properties of the virtual images formed by the two types of spherical lenses (concave and convex) . How are these characteristics of the two lenses used in the correction of the two common defects of vision namely myopia and hypermetropia?
Marking-scheme solution
Concave lens & Convex lens
Diminished image / m<$\displaystyle 1$ & - Magnified image / m>$\displaystyle 1$
v < u / image distance < object distance & - \(\displaystyle \mathrm{v}>\mathrm{u} /\) image distance > object distance
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CBSE Class 10 Science past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.