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Q.

What is the name of the circular aperture through which light enters the eye?

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a

Iris

b

Pupil

c

Cornea

d

Optic Nerve

answer is B.

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Detailed Solution

The circular aperture through which light enters the eye is known as the pupil. The pupil is a black circle in the centre of the iris. So, the pupil lies inside the iris. The pupil changes size to let light into the eye. It gets smaller in bright light and larger as the amount of light decreases.

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