The amount of light entering the human eye is controlled by        a.  Ciliary muscles        b.  Pupil        c.  Cornea        d.  Iris

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Muskan Anand

2 years ago

Option D. Iris regulates the amount of light entering the eye by adjusting its size. Iris is a thin membrane, which controls pupil which in turn regulates the amount of light entering the eye.

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