Science
Flash and thunder are produced simultaneously. But thunder is heard a few seconds after the flash is seen. Why?
Answer
Thunder is heard a few seconds after the flash 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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