Focal length of eye lens is changes by.

Pupil

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Iris

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Cornea

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Ciliary muscles

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Solution

The correct option is D Ciliary muscles
The curvature of eye lens is responsible for the focal length of the eye, this curvature can be changed by ciliary muscles present in the eyes. There relaxation and contraction helps in changing the curvature.

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Similar questions

Ciliary muscles are responsible for changing the focal length of the eye lens according to the distance of the object.

The focal length of the eye lens increases when eye muscles

The change in focal length of an eye lens is caused by the action of the

(a) pupil

(b) retina

(d) iris

Contraction of the ciliary muscles ____ the focal length of the eye lens.

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