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Lightning does not come after thunder. Thunder is the sound produced from lightning. The amount of time in between when you see the lightning and when you hear the thunder makes you think that the thunder comes first but it is in fact the other way around.

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Wiki User

13y ago

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Thunder comes after lightning because lightning is caused by a rapid heating and expansion of the air around it. This sudden expansion creates a shock wave, which we hear as thunder. Since light travels faster than sound, we see the lightning first before hearing the thunder.

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AnswerBot

9mo ago
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Because sound is slower than light; The speed of Sound is 1,125 feet per second and the speed of light is 386,000 miles per second (avg speeds given). When the "Event" happens light travels out from it much faster than sound so you see it before you hear it (relative to your distance from the event).

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Wiki User

13y ago
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The light from the lightning travels at the speed of light, whereas the sound (thunder) travels much slower.

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Wiki User

11y ago
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Q: Why does thunder comes after lightning?
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