What is defined as the distance of one complete wave or the distance from any point on the wave to the adjacent point with similar oscillation?

Wavelength is defined as the distance of one complete wave or the distance from any point on the wave to the adjacent point with similar oscillation, such as from crest to crest or trough to trough. It reflects the physical length of a single oscillation of the wave and is a crucial parameter in understanding wave behavior, such as how waves propagate through different mediums.

Amplitude refers to the maximum displacement of points on a wave from the equilibrium position, which does not describe the distance between repeating units of the wave. Frequency, on the other hand, refers to how many cycles of the wave occur in a unit of time, typically measured in hertz (Hz), and is also unrelated to the specific distance per oscillation. Wave speed indicates how fast the wave travels through a medium, but it does not describe the physical distance of the wave itself. Thus, wavelength is the accurate term that encompasses the definition provided in the question.