Question

the property of the wave represented by letter a is? *
options: amplitude, trough, crest, wavelength

Explanation:

Letter A marks the distance between two corresponding points on consecutive wave cycles, which is the definition of wavelength. Amplitude is the distance from the rest line to a peak/trough (marked by B), a trough is the lowest point of the wave, and a crest is the highest point.

Answer:

wavelength