A musical tone is coming from a loudspeaker. If a second loudspeaker nearby were to start playing exactly the same tone, the sound would
A) get louder everywhere.
B) get softer everywhere.
C) stay the same everywhere.
D) get louder in some areas and get softer in others.

Question

Quizplus · Accepted Answer

When two loudspeakers play exactly the same tone, the sound waves they produce will interfere with each other. In some areas, the waves will constructively interfere, making the sound louder, and in other areas, they will destructively interfere, making the sound softer. This phenomenon is known as interference.

A Musical Tone Is Coming from a Loudspeaker