plz...answer fast xam tomorrow
Asked by Sonal13 | 1st Feb, 2010, 12:31: PM
Focal length of the eye lens is greater when ciliary muscles are relaxed than when they are contracted.
To focus on distant objects the ciliary muscles relax making the eye lens thin.
As a result the focal length of the eye lens increases and we see the distant objects.
But to focus on nearby objects the ciliary muscles contract making the eye lens thick.
As a result the focal length of the eye lens decreases and we see the nearby objects.
Answered by | 1st Feb, 2010, 01:31: PM
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