A child watching Dussehra from a distance sees the effigy of ravana burst into flames and hears the explosion associated with it 2 sec after that. How far was he from the effigy if the speed of sound in air that night was 335m/sec ?
Here given, speed of the sound v=335 m/sv=335 m/s Time taken by the sound to reach the child t=2 sect=2 sec Therefore, the distance of the child from the effigy =v×t=v×t =335 m/s×2 s=335 m/s×2 s =670 m
