Which of the following controls the amount of light entering the eye?

Q. Which of the following controls the amount of light entering the eye?
Answer: Iris
Notes: The pupil is the opening in the center of the iris. The size of the pupil determines the amount of light that enters the eye. The pupil size is controlled by the dilator and sphincter muscles of the iris.

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📌 Question Number: 111 in Physics GK 19 - Light and Human Eye in the above course in App.

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