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When you enter from a bright sunshine into a dark room, you are not able to see clearly for some time, why?

Posted by Nitin Tiwari 5 years, 8 months ago

CBSE > Class 10 > Science

4 answers

Deepak Kumarjjji 5 years, 8 months ago

Adjustment of pupil

0Thank You

Gargi Sharma 5 years, 8 months ago

Because pupil take time to adjust

0Thank You

Gaurav Seth 5 years, 8 months ago

When we are in bright sunlight, the iris of our eyes adjust the pupil in such a way that less light enter our eyes (i.e. the pupil shrinks). But, when we enter a dark room, the iris needs to adjust the pupil in such a way that more light enter our eyes (i.e. the pupil needs to be enlarged). This is because we cannot see anything in a dark room if less light enter our eyes. The adjustment of pupil takes time. So, when we enter from bright sunlight to a dark room, we cannot see initially.

1Thank You

Dalpreet Kaur 5 years, 8 months ago

Because pupil need time to adjust.

0Thank You

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CBSE > Class 10 > Science