Noise cancelling headphones eliminate outside noise by combining the original sound wave with a wave produced when the original sound wave is inverted. Explain how this cancels out the wave. You must use the terms interference and superposition your response.

To reduce or cancel out noise, research has shown that superimposing a sound wave and and the wave produced when the sound wave is inverted, cancels the sound by creating a destructive interference of the two waves. Destructive interference occurs when the troughs of the sound wave superimposes with the crest of the inverted wave canceling out the sound wave. This research shows great potential in the automobile industry for canceling out noise fro mthe exhaust vent.

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