The size of the pupil of the eye is adjusted by:
(a) cornea
(b) ciliary muscles
(c) optic nerve
(d) iris

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Solution

(d) iris

The iris controls the size of the pupil.

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What is the function of the following -

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b- cornea

c- retina

d- iris

e - eye lids

d- optic nerve

d- siliary muscles

The change in converging power of an eye-lens is caused by the action of:

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(b) ciliary muscles

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