Question

Explain the terms crest and trough in relation to a transverse wave.

Answer 1

A transverse wave is one in which the displacement of the particles is at

${90}^{\circ }$ to the direction of travel. In a water wave, the particles move up and down while the wave travels horizontally. All electromagnetic waves are transverse,
Here the upper curve is called crest,
And the lower curve is called trough.


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