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The wavelength of a wave is the distance between

Athe crest and the following trough.
Btwo consecutive crests.
Cthe amplitude and the normal position.
Dthe rarefaction and the following compression.

Verified Answer :

taskmasters

The correct answer is "b."

The wavelength of a wave is the distance between two consecutive crests. This applies to a transverse wave, where the wavelength can always be determined by measuring the distance from crest to crest or from trough to trough.

However a longitudinal wave has no crest or trough. How can the wavelength be determined ?
In this case, the wavelength can be determined by measuring the distance from one compression to the next compression or from a rarefaction to the next rarefaction.

amyt95

The wavelength of a wave is the distance between


A. the rarefaction and the following compression.

B. the crest and the following trough.

C. the amplitude and the normal position.

D. two consecutive crests.

THE CORRECT ANSWER IS D

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