Question:
Two persons P and are standing at a distance of 100 m from a
Last updated: 6/10/2023
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Two persons P and are standing at a distance of 100 m from a high wall as shown in the figure When P gives a clap the time interval between the two direct and reflected sounds heard by Q is 0 2 s If the speed of sound is 340ms then the distance d between P and Q is Wall