in human eye the focussing is done by
1) to and fro movement of Retina
2)to and fro movement of eye lens
3)change in convexity of lens
4)change in Refractive Index of a fluid
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change in convexity of lens...
hope it will help you if it is right then mark as
hope it will help you if it is right then mark as
Anonymous:
a. is the correct once
Answered by
1
according to me 2)to and fro movement of eye lens.....
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