Question

please solve this problem?? ​

Answer 1

since wave return back

so distance is travelled two times.

v=2d/t

342=2d/3

2d=342×3

d=342×3/2

d=171×3

d=513m

Answer 2

t=3s,v=342m/s we know that 2d=vt ,d=vt/2, d=342*3/2=513m