MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Echo

Why can an ec...

Question

Why can an echo not be heard if you stand 10 m away from a wall and shout facing it?

Open in App

Solution

We cannot hear the echo because the time difference between the original sound and reflected sound will be less than 1/10^th of a second. So, we are not able to distinguish between the two sounds.

Suggest Corrections

thumbs-up

2

Similar questions

Q. A boy shouts while standing between two walls. He heard two echoes with an interval of

0.25 s

in between them. If he is

60 m

away from the farthest wall, how far away is he from the other wall?
[speed of sound

= 344 m s^{- 1}

Q. Why will an echo not be heard when the distance between the source of sound and the reflecting surface is

10 m

Q. A person standing between two vertical cliffs and 640 m away from the nearest cliff, shouted. He heard the first echo after 4 s and the second echo 3 s later. The distance between the cliffs is

Q. A man standing 48 m away from a wall fires a gun. Calculate the time after which an echo is heard. (The speed of sound in air is 320

m s^{- 1})

.

If a person shouts near a wall and heard the echo after 10 sec.What is the distance of the wall from the person?(take speed of sound=346 m/s)

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Echo

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard VIII Physics

Join BYJU'S Learning Program

CrossIcon