Question

define crest and trough​

Answer 1

A crest point on a wave is 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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Answer 2

Answer:

Trough (physics) the lowest point on a wave

Crest point on a wave at a maximum value displacement within a cycle

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