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For a normal human eye, the near point (least distance of distinct vision) and the far point are located respectively at which distances?
A25 cm and at infinity
BInfinity and at 25 cm
C2 cm and at 25 cm
D25 cm and at 2.4 cm
Answer & Solution
Correct answer: A. 25 cm and at infinity
1. The near point is the closest distance for clear, strain-free vision; for a normal eye it is 25 cm.
2. The far point is the farthest such distance; for a normal eye it is at infinity.
3. So the pair is 25 cm and infinity, matching option A.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 7 "Lenses", p.96_
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