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Home > physics > Question

Why is lightning usually seen before thunder is heard?

0
A) Thunder cannot travel through air
B) Lightning occurs after thunder
C) Sound travels faster than light
D) Light travels faster than sound

Correct Answer: D) Light travels faster than sound

• Light travels much faster than sound in air. • Light from lightning reaches an observer almost immediately over ordinary storm distances. • Thunder is the sound produced by the rapid heating and expansion of air along the lightning channel. • The time delay between the flash and thunder can help estimate how far away a storm is.

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