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Light — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceLight1 Mark
MCQ
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.
  • ✓
    The lens becomes thicker or thinner.
  • D
    The pupil becomes larger or smaller.
✓

Answer

Correct option: C.
The lens becomes thicker or thinner.
The shape of the lens is changed by ciliary muscles so that the image forms at a sharp focus at the retina. The lens becomes thicker to focus at near objects and becomes thinner to focus at distant objects.

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