Posted by
**Jennie** on
.

You are standing 7 feet from one speaker and 13 feet from another. Both speakers are producing the same sound. If the combined sound from both speakers is especially loud at your location, which of the following could be the wavelength of the sound? Choose all that apply.

1 foot

2 feet

3 feet

4 feet

5 feet

6 feet

7 feet

8 feet

9 feet

10 feet

12 feet

18 feet

And how do you find this out>?