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Question
The muscles of a normal eye are least strained when the eye is focussed on an object
Options
far away from the eye
very close to the eye
at about 25 cm from the eye
at about 1 m from the eye
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Solution
far away from the eye
A normal eye can see from 25 cm to infinity; it faces least difficulty and strain focussing on the object as far as it could be.
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