| Interference |
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| n | When waves
travel in the same |
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| region and in
the same plane |
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| at the same time |
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| (superposition)
they can |
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| interfere with
each other |
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| n | In
“constructive” interference, |
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| waves build on
one another to |
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| increase
amplitude |
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| n | In “destructive”
interference, |
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| waves destroy on
another to |
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| decrease
amplitude |
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