Question

नेम द पार्ट ऑफ द आई व्हिच इज द फोकल लेंथ ऑफ आई लेंस​

Answer 1

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The answer is C.

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.