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Functions of Different Organs in the Human Eye

Which of the ...

Question

Which of the following changes occur when you walk out of bright sunshine into a poorly lit room?

(a) the pupil becomes larger

(b) the lens becomes thicker

(c) the ciliary muscle relaxes

(d) the pupil becomes smaller

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Solution

(a) the pupil becomes larger

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Q. Which of the following changes occur when you walk out of bright sunshine into a poorly lit room ?
(a) the pupil becomes larger (b) the lens becomes thicker
(c) the ciliary muscle relaxes (d) the pupil becomes smaller

Which of the following is not a part of the human eye?

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(b) the retina moves in or out

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How does the eye change in order to focus on near or distant objects?

(a) the lens moves in or out

(b) the retina moves in or out

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(a) cornea (b) iris (c) pupil (d) ciliary muscles (e) eye-lens
(f) retina (g) optic nerve
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(c) Explain why, we cannot see our seats first when we enter a darkened cinema hall from bright light but gradually they become visible.

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Functions of Different Organs in the Human Eye

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