Question

A. An
is a reflected sound
a) Vibration
b) Echo
c) Pitch d) volume​

Answer 1

Answer:

When sound travels in a given medium, it strikes the surface of another medium and bounces back in some other direction, this phenomenon is called the reflection of sound. The waves are called the incident and reflected sound waves

Answer 2

Answer:

(b) Echo

Explanation:

the echo is the reflected sound