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The capacity of the eye lens to change its focal length in order to focus on objects at different distances is given a specific name. What is it called?
APersistence of vision
BPower of accommodation
CLeast distance of vision
DMagnification of the eye
Answer & Solution
Correct answer: B. Power of accommodation
1. The eye lens becomes flatter for distant objects and rounder for near objects.
2. This ability to adjust focal length as needed is called the power of accommodation.
3. Persistence of vision is about retention of an image, so it is ruled out.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 7 "Lenses", p.96_
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