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Which is faster Light or Sound?

  • A.Light
  • B.Sound
  • C.Both are same
  • D.Can't be determined

Answer: A

Light is far faster than sound - 3 × 108 m/s in vacuum against about 340 m/s for sound in air, roughly 900,000 times faster.

This is why lightning is seen before the thunder is heard, and why counting the seconds between them gives the distance of the storm at about 3 seconds per kilometre.

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