the size of pupil enlarges in dark
Answers
Question :-
The size of pupil enlarges in dark. Why ?
Answer :-
The pupil is the front portion of the eye which leads to the eye lens where the ray of light is converged .
The size of the pupil enlarges to let more light to enter the eye.
This process is particularly called dark adaptation .
These are the characteristics of dark adaptation :-
(i) The ciliary muscles relax .
(ii) The iris enlarges .
This is because the amount of light entering is very low.
This has to be increased by opening and enlarging the pupil.
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Answer:
To control the amount of light entering the eye, the iris widens or narrows to change the size of the pupil. For example, when it's dark, the iris widens and the pupil dilates, or gets bigger, to allow as much light as possible to enter the eye.
Explanation:
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