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Question
The focal length of the eye lens increases when eye muscles ____________.
Options
are relaxed and lens becomes thinner
contract and lens becomes thicker
are relaxed and lens becomes thicker
contract and lens becomes thinner
MCQ
Fill in the Blanks
Solution
The focal length of the eye lens increases when eye muscles are relaxed and lens becomes thinner.
Explanation:
Ciliary muscles modify the curvature of the eye lens. When eye muscles are relaxed, the eye lens becomes thinner thereby are relaxed, the eye lens becomes thinner thereby increase in the focal length of the eye lens.
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