Q. 114.6( 14 Votes )

Lightning can be seen the moment it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs?

(speed of sound = 330 m/s).

Answer :

Given: Time period = 5s


Speed of sound = 330 m/s


To calculate distance, we will apply the formula given below:


Distance = Speed × time


Distance = 330 m/s × 5s


Distance = 1650 m


Distance = 1.65 km ( 1km = 1000m)


Thus, she is standing at 1.65 km.


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