An echo is created when sound waves bounce off a hard surface and return to the listener. Among the options provided, the room with hard, flat walls is most likely to create an echo, as flat surfaces reflect sound waves effectively without diffusing them, leading to a clearer return of the sound.
Which surface is most likely to create an echo?
a room with hard, bumpy walls
a room with hard, flat walls
a room padded with soft, flat cushions
a room covered in soft, wavy curtains
1 answer