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Human Eye and Colourful World — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHuman Eye and Colourful World1 Mark
MCQ
Even in absolutely clear water, a diver cannot see very clearly because.
  • A
    Rays of lights get diffused.
  • ✓
    Velocity of light is reduced in water.
  • C
    Ray of light passing through the water makes it turbid.
  • D
    The focal length of the eye lens in water gets changed and the image is no longer focused sharply on the retina.
✓

Answer

Correct option: B.
Velocity of light is reduced in water.
Velocity of light is reduced in water water is a denser medium and light goes slower than light goes in air.

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