Two persons P and Q are standing at a distance of 100 m from a high wall and at a - Science - Sound

Question

Two persons P and Q are standing at a distance of 100 m from a high
wall and at a distance of D m from each other Now if P gives a clap
the time interval between the two(direct and reflected)sounds heard
by Q is 0 2s If speed of light is given to be 340m/s then find the
distance D

Sumit Kumar · Answer

2d= v*t
2d=340*0 2
2d=17 00
d=8 5m

hope it helps you

Two persons P and Q are standing at a distance of 100 m from a high wall and at a distance of D m from each other. Now if P gives a clap the time interval between the two(direct and reflected)sounds heard by Q is 0.2s. If speed of light is given to be 340m/s then find the distance D