A child watching Dussehra from a distance sees the effigy of Ravana burst into flames and hears the explosion associated with it $2\ s$ after that. How far was he from the effigy if the speed of sound in air that night was $335\ m/sec$?

 Here given, speed of the sound $v=335\ m/s$

Time taken by the sound to reach the child $t=2\ sec$

Therefore, the distance of the child from the effigy $=v\times t$

$=335\ m/s\times 2\ s$

$=670\ m$

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Updated on: 10-Oct-2022

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