(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.


(a) The convex eye-lens differ from the ordinary convex lens made of glass, as the focal length of the convex eye-lens and its converging power can be changed by the action of the ciliary muscles. But, the focal length of the ordinary convex lens made of glass cannot be changed, it remains fixed.


(b) The order of the parts of the eye through which light passes to reach the retina is as follows:

1. Cornea

2. Pupil

3. Eye lens

4. Vitreous humour

5. Retina


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Updated on: 10-Oct-2022

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