# Two speakers on a horizontal axis both emit #440# Hz sound waves. The two speakers are #pi# radians out of phase. If there is to be a maximum constructive interference what is the minimum separation distance between the two speakers?

##### 1 Answer

Mar 17, 2018

#### Answer:

0.39 meters

#### Explanation:

Because the two speakers are off by

The equation

Finally, we must divide the value of the wavelength by two because we want to shift them over half a cycle.