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Two persons p and Q are standing at a distance of 100m from a high wall .when p gives a clap, the time interval between the two sounds heard by Q is 0.2s.if the speed of the sound is 340 m/s,then the distace between P and Q is

Two persons p and Q are standing at a distance of 100m from a high wall .when p gives a clap, the time interval between the two sounds heard by Q is 0.2s.if the speed of the sound is 340 m/s,then the distace between P and Q is

Grade:8

1 Answers

Vikas TU
14149 Points
4 years ago
Dear student 
Distance of persons from wall=100 m
suppose the distance between the persons=d
Using,
Speed=Distance /time
340=(100 +d+100) / 0.2
68=200+d
or d=132 m (taking magnitude)  

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