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Functions of Different Organs in the Human Eye

How does the ...

Question

How does the eye-lens differ from the ordinary convex lens made of glass?

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Solution

Eye lens is made up of living cells, whereas a convex lens is made of glass. Eye can change its focal length whereas the focal length of a convex lens is fixed. Stereoscopic vision of eyes allows three-dimensional images while a convex lens forms only two-dimensional images.

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Q. (a) How does the convex eye-lens differ from the ordinary convex lens made of glass ?
(b) List, in order, the parts of the eye through which light passes to reach the retina.

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Q. Which has more power : a thick convex lens or a thin convex lens, made of the same glass? Give reason for your choice.

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Functions of Different Organs in the Human Eye

Standard VIII Physics

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