Question

13.A boy standing infront of a tall building at a distance of 324 m fires a cracker and hears an echo in 1.8

sec. find the speed of sound at that place.​

Answer 1

Answer:

360 m/s

Explanation:

Sound takes half the time to go to building and another half to return to the source.

So speed of sound at the place = 324m / 0.9s = 360m/s.