Q. 134.4( 7 Votes )

Boojho saw a cracker burst at night at a distance from his house. He heard the sound of the cracker a little later after seeing the cracker burst. Give reason for the delay in hearing the sound.

Answer :

Boojho heard the sound of cracker after seeing the cracker because:

The speed of light is faster than sound.


Speed of sound in air = 330 m/s


Speed of light in air = 3 × 108 m/s


Thus, Boojho saw burst of cracker (light) first, then after some times, he heard the sound.


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