In order to determine the wavelength, you must know the distance from the

(A) trough of one wave to the crest of the next wave.
(B) midpoint of a wave to the highest point of the next wave.
(C) crest of the wave to the equilibrium of the same wave.
(D) the crest of one wave to the crest of the next wave.

Question

In order to determine the wavelength, you must know the distance from the

(A) trough of one wave to the crest of the next wave. 
(B) midpoint of a wave to the highest point of the next wave. 
(C) crest of the wave to the equilibrium of the same wave. 
(D) the crest of one wave to the crest of the next wave.

anonymous · Answer

Is this D? @texaschic101 @iambatman @wio @iGreen @abb0t

anonymous · Answer

|dw:1419547791602:dw| crest - crest = wavelength, looks good to me :)