Chapter 2: The Human Eye and the Colourful World

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Q
The Human Eye and the Colourful World

Question:

The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to

(a) presbyopia.

(b) accommodation.

(c) near-sightedness.

(d) far-sightedness.

Answer:

The correct option is (b).

The ability of the eye to focus on both the near and distant objects, by adjusting its focal length, is called the accommodation of the eye.

The Human eye can change the focal length of the eye lens to see the objects situated at various distances from the eye. This is possible due to the power of accommodation of the eye lens.


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