Question

How does an echo produce?​

Answer 1

Answer:

• Echo is a repetition of Sound. It happens when we say something under a hollow dope like structure. For example Palaces......

Answer 2

Answer:

Echo is produced when, the sound,on hitting a distant object,reflects back to the observer, just after the original sound ceases

If the original and reflected sound, both occur at same time, then it's called reverbration