Definitions for "Destructive interference"
The adding together of two or more waves to form a third wave that has a lesser amplitude than either of the orginal waves. In total destructive interference in sound waves no sound is heard Image of total destructive interference. Image of destructive interference.
Destructive interference occurs when two waves overlap such that they are completely out of phase (the troughs and peaks of the two waves are opposed to each other). Note, for this to occur down the entire wave, the two waves must have the same wavelength. When destructive interference occurs, the two waves are subtracted from each other. If the two waves have equal amplitude before colliding they will completely cancel each other.
Compare with constructive interference. When the peaks of one wave match the troughs of another, the waves interfere destructively. The amplitudes of the interfering waves cancel to give the resultant wave a lower amplitude.
Keywords:  sensivity
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