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The least distance of distinct vision for a young adult is approximately:
A25 cm
B50 cm
C10 cm
D100 cm
Answer & Solution
Correct answer: A. 25 cm
1. The near point of a normal young adult is about 25 cm.
2. Objects held closer cannot be focused sharply because the lens cannot increase curvature further.
3. This 25 cm distance is the least distance of distinct vision.
_Source: NCERT Class 10 Science, Ch 10 "The Human Eye and the Colourful World", §10.1.1_
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