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Interference of Two Sources: Surround Sound

WAVES-TPOWTV

VERN HART. Created for Albert.io. Copyright 2016. All rights reserved.

Suppose two speakers oscillate perfectly in phase and each emits a frequency of 85 Hz.. The two speakers are placed 20 m apart, facing each other.

At which of the following locations would you hear a loud signal? (constructive interference)

A

5 m from the left speaker.

B

8 m from the left speaker.

C

9 m from the left speaker.

D

11 m from the left speaker.