Question

what happens to the pupil of eyes when bright light fall on our eyes​

Answer 1

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When you're in bright light, it shrinks to protect your eye and keep light out. When your pupil shrinks (constricts), it's called miosis. If your pupils stay small even in dim light, it can be a sign that things in your eye aren't working the way they should.

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Answer 2

Explanation:

When bright light falls on our eyes, the iris makes the pupil small so that less amount of light could enter the eye. This contraction of pupil is called miosis.