Question

How is the amount of light entering the eye controlled? What changes are made in the eye to enable it to focus on object situated at different distances?

Answer 1

Answer:

The eye can focus object at different distances by changing the focal length of its lens. The focal length of the eye lens is changed by the action of ciliary muscles, which can change the thickness of the soft and flexible eye lens such that its focal length ( and hence the converging power) is changed

Explanation:

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Answer 2

Answer:

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