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(a) What are the parts of eye which cons...

(a) What are the parts of eye which constitute its focussing part?
(b) What causes maximum refraction ?
(c ) What is the function of lens of eye ?

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(a) Focussing part of human eye include conjunctiva, cornea , aqueous lens and vitreous humans. They refract the light rays the light rays to bring them to a focus on retina.
(b) Maximum refraction of light is caused by the cornea.
(c ) Lens effects fine adjustments and brings the image into a sharps focus.
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