Question

a girl hears an echo of her voice from a distant hill after 2 second . What is the distance of hill from the girl? given speed of sound in air 340 m/s? ​

Answer 1

Answer:

distance = speed * time

340*2 = 680 m

Answer 2

Answer:

680

Explanation:

echo of voice= 2

speed of voice (given) = 340m/s

so distance traveled by voice =speed of sound × echo of voice

340×2= 680