Physicshard · Past Paper
If a ray of light goes from water to air, its speed:
AIncreases
BDecreases
CRemains same
DBecomes zero
✓ Correct Answer: A — Increases
Air is optically rarer than water, so light travels faster in air.
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✓ Correct Answer: A — Increases
Air is optically rarer than water, so light travels faster in air.
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