Flash and thunder are produced simultaneously. But thunder is heard a few seconds after the flash is seen, why?

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Solution

Thunder is heard a few seconds later after the flash because the speed of light in the atmosphere at normal temperature is $3 \times 10^{8} m s - 2$ .
This speed is very high, as compared to the speed of sound which is only $330 m s - 1$ .
That is why the sound of thunder reaches us later than the flash.

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Flash and thunder are produced simultaneously. But thunder is heard a few seconds after the flash is seen, why?

Thunder is heard a few seconds later after the flash because the speed of light in the atmosphere at normal temperature is3×108ms-2. This speed is very high, as compared to the speed of sound which is only330ms-1. That is why the sound of thunder reaches us later than the flash.