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The change in focal length of an eye tens is caused by the action of the(a) pupil.(b) retina.(c) ciliary muscles.(d) iris.

Pawan Prajapati , 4 Years ago
Grade 12
anser 2 Answers
Harshit Singh

Last Activity: 4 Years ago

Dear Student

Option(c)is correct here.

Thanks

KAPADIA DEV

Last Activity: 4 Years ago

The ciliary muscle is a circular muscle that relaxes or tightens the zonules to enable the lens to change shape for focusing. The zonules are fibers that hold the lens suspended in position and enable it to change shape during accommodation. It increases or decreases the focal length of the eye lens.

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