Parent And Child Waves??
a: Destructive interference ~
b: adding a positive number to a negative number
What: "Interference occurs whenever waves collide. You've probably seen waves of water cancel each other upon impact. This is destructive interference, which occurs when the rising part of one wave meets the falling part of another. Conceptually, destructive interference is like adding a positive number to a negative number. On the other hand, when waves meet as both are moving up together, interference still occurs but it is constructive , or additive, and the resulting wave crests higher than its parents."
Useful?
Writer: Paul Pietsch
LCC:
Where:
Date: Jul 30 2013 4:09 PM
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