Question

when is the reflection of sound harmful

Answer 1

reflection of sound is called an echo.
An echo is not harmful/ first if you produce sound in high frequency you can't hear. second when you try reflecting it. the freq reduces. So the reflection of sound becoming harmful is of low possibility.

instead the sound - Volume+Intensity of sound when I reached more than 100db it's harmful.

Plz mark as brainliest answer....

Answer 2

Answer:

reflection of sound is harmful when multiple sounds get mixed together due to reflection