Question

describe and explain how a normal eye can see object lying at various distance clearly ​

Answer 1

Answer:

A normal eye can view objects at various distances by the power of accomodation . When light falls on the eye from short distances , the ciliary muscles constrain , making the lens become smaller and rounder . This causes the focal length to become small and the light is focussed on the retina.

Answer 2

Answer:

by the power of accommodation . ... When light falls on the eye from long  distances , the ciliary muscles relaxes , making the lens become larger .This increases focal length and the light is focused on the retina.

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