What is the pupil?

1.	What is the pupil?
Answer» Just behind the cornea is a dark coloured muscular diaphragm called iris which has a small circular opening in the middle called pupil. The pupil appears black because no light is reflected from it. The iris regulates the amount of light entering the eye. It regulates the light by adjusting the size of the pupil.

Answer»

Just behind the cornea is a dark coloured muscular diaphragm called iris which has a small circular opening in the middle called pupil. The pupil appears black because no light is reflected from it.

The iris regulates the amount of light entering the eye. It regulates the light by adjusting the size of the pupil.

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What is the pupil?

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