Question

how iris and pupil combination controls the intension of light which is entering into the eye?​

Answer 1

Answer:

Iris is made up of circular muscles which increase or decrease the size of pupil.

In bright light iris relaxes this size of the pupil decrease reducing the amount of light entering in the eye.

In dim light, iris contracts this size of pupil increases so the maximum amount of light can enter in the eye.

Explanation:

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