Question

Why intensity of an echo is less than that of original sound ?

Answer 1

Answer:

Yes, it is true that intensity of echo is less than original sound.

Explanation:

This is because some energy is lost until the sound reaches the reverberating surface.

For example:

If I'm standing 100m away from a hill.

And I shout out my name.

The (sound) energy released by me will get dispersed in the way till it reaches hill.

And also, until sound reaches us from hill the returning sound energy too get converted in various energy.

Hope this helped you.

Thank you

Answer 2

Answer:

• The Echo is weaker than the original sound.

• This is because Echo is the refection of a sound wave i.e a reflected sound.

• When sound is reflected the intensity of sound decreases.

• Hence the Echo is weaker.