Question

a man stands at a distance of 950m from a cliff fires a gun what time gap will he hear an echo if speed of sound is 340 m/s in air​

Answer 1

14 km is the gap oooooooookkkk

Answer 2

Answer:

⟹

Answer:4s

Speed= Distance

time

Speed of sound in air = 330 m/s

Distance = 660 m

But in echo sound travels same path twice, that's why

By substituting values we get,

\bold{\huge{ s = \frac{2d}{t}}}s=

t

2d

330 m/s = 2 × 660 m / t

t = ( 660 m / 330 m/s ) × 2

\boxed{\bold{\underline{\large{t\:=\:4\:s}}}}

t=4s

Hence 4 s will be taken by sound to reach the observer.