the change in focal length of an eye lens , to focus the image of objects at varying distances, in brought about by the action of -OPTIONS ( 1 ) PUPIL ( 2 ) IRIS ( 3 ) RETINA ( 4 ) CILIARY MUSCLES ? WHICH IS THE CORRECT ANSWER
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Explanation:
given :
the change in focal length of an eye lens , to focus the image of objects at varying distances, in brought about by the action of -OPTIONS ( 1 ) PUPIL ( 2 ) IRIS ( 3 ) RETINA ( 4 ) CILIARY MUSCLES ?
answer :
- CILIARY MUSCLES
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