Question

What is an echo ? What factors are important to get a distinct echo ?​

Answer 1

Answer:

a sound that is repeated as it is sent back off a surface such as the wall of a tunnel.

The repetition of sound caused by its reflection off a hard surface is known as echo. Factors important to get a distinct echo are: The minimum distance between the source and reflector of sound should be 17 m. The size of reflector must be large enough as compared to the wavelength of the sound wave.

Answer 2

Required Answer:-

What is echo?

Ans:- A sound or sounds caused by the reflection of sound waves from a surface back to the listener.

What factors are important to get a distinct echo?

Ans:- Factors important to get a distinct echo are:-

• The minimum distance between the source and reflector of sound should be 17m.
• The size of reflector must be large enough as compared to the wavelenght of the sound wave.

hope its help you