Name: Phase Interference Category: Waves and Oscillations Subcategory: Wave Motion Classes:

Comments: Two speakers play a 60 Hertz tone. While the speakers are in phase, everyone can hear the tone. Using a switch box, one of the speakers can be thrown out of phase causing destructive interference. The sound almost completely disappears. Music can also be played through the speakers to emphasize the importance of hooking up ones stereo correctly.

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