The focal length of the eye lens changes due to the action of:

Pupil

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Retina

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Ciliary muscles

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Cornea

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Solution

The correct option is C
Ciliary muscles

The focal length of the eye lens changes due to the action of ciliary muscles. The focal length of the lens is changed when the ciliary muscle forces the lens to change shape. This enables us to see the image of objects at different distances.

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Similar questions

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

(a) pupil

(b) retina

(d) iris

(a) Draw a labelled diagram of the human eye. Label the following parts on this diagram: Cornea, Iris, Pupil, Ciliary muscles, Eye-lens, Retina, Optic nerve and Blind spot.

(b) What are the functions of the following parts of the eye?

(i) Iris (ii) Eye-lens (iii) Ciliary muscles (iv) Retina (v) Optic nerve

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

Relaxation of the ciliary muscles causes the focal length of eye lens to:

Q. When the ciliary muscles are relaxed, the focal length of the eye lens

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The focal length of the eye lens changes due to the action of:

The correct option is C Ciliary muscles The focal length of the eye lens changes due to the action of ciliary muscles. The focal length of the lens is changed when the ciliary muscle forces the lens to change shape. This enables us to see the image of objects at different distances.​

The correct option is C
Ciliary muscles

The focal length of the eye lens changes due to the action of ciliary muscles. The focal length of the lens is changed when the ciliary muscle forces the lens to change shape. This enables us to see the image of objects at different distances.