In human eye the focusing is done by:1. To and fro movement of eyelens2.To and fro movement of retina3.Change in the convexity of the lens surface4.Change in the refractive index in the eye fluids

In human eye the focusing is done by:1. To and fro movement of eyelens

1.	In human eye the focusing is done by:1. To and fro movement of eyelens2.To and fro movement of retina3.Change in the convexity of the lens surface4.Change in the refractive index in the eye fluids
Answer» To and FRO MOVEMENT of EYE LENS

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In human eye the focusing is done by:1. To and fro movement of eyelens2.To and fro movement of retina3.Change in the convexity of the lens surface4.Change in the refractive index in the eye fluids

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