A crest point is a point on wave with the maximum value of upward displacement within a cycle. A crest is a point on a surface wave where the displacement of the medium is at a maximum.
A trough is the opposite of a crest, so the minimum or lowest point in a cycle.
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A crest point on a wave is the maximum value of upward displacement within a cycle.
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Answer:
A crest point is a point on wave with the maximum value of upward displacement within a cycle. A crest is a point on a surface wave where the displacement of the medium is at a maximum.
A trough is the opposite of a crest, so the minimum or lowest point in a cycle.