The minimum distance to hear echo (speed of sound in air is `340 m//s`)

What is the minimum distance required to hear an echo, when the speed of sound in air is 340 ms^(-1) ?

Calculate the minimum distance in air required between the source of sound and the obstacle to hear an echo. Take speed of sound in air = 350 m s^(-1)

What is the minimum distance between the reflector and the listener to hear the echo, when the speed of sound in air is 330 ms^(-1) ?

A man’stationed between two hills fires a gun. He hears the first echo after 1 s and the second after 2 s. What is the distance between the hills. The speed of sound in air is 330 m/s.

A person standing between two hills fired a gun heard the first echo after 0.6s and the second echo after 1s. Find the distance between the two hills. (speed of sound in air =340m//s )

Solve the following example: A person standing between two hills fired a gun and heard the first echo after 0.5 s and the second echo after 0.9 s. Find the distance between two hills. (speed of sound in air =340 m//s )

A man stationed between two parallel cliffs fires a gun. He hears the first echo after 1.5 s and the next after 2.5 s . What is the distance between the cliffs and when does the hear the third echo ? Take the speed of sound in air as 340 m//s .

The minimum distance to hear an echo is (Taking the velocity of sound in air to be 330 m s^(-1) )

A person standing near a hill fires a gun and hears the echo after 1 second. If speed of sound in air is 340 m//s . Find the distance between the hill and the person.

A man shouts loudly close to a high wall. He hears an echo. If the man is at 40 m from the wall, how long after the shout will the echo be heard? (speed of sound in air = 330 m//s )