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Refraction of Light at Plane Surfaces — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsRefraction of Light at Plane Surfaces1 Mark
MCQ
In which medium does light travel fastest?
  • ✓
    air
  • B
    water
  • C
    glass
  • D
    diamond
✓

Answer

Correct option: A.
air
(a)
air
Explanation:
Light travels at its maximum speed in a vacuum or air, which is approximately $3 \times 10^{\wedge} 8$ meters per second.

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