Science
Lightning and thunder take place in the sky at the same time and at the same distance from us. Lightning is seen earlier, and thunder is heard later. Can you explain why?
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Answer
Thunder is heard a few seconds after lightning is seen because sound travels much slower than light.
Light takes almost negligible time in comparison to sound in reaching us from the place of thunder because speed of light is much more (3 x 108 ms-1) than the speed of sound (= 330 ms-1).
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