GEOLOGY

Detailed explanation-1: -The highest part of the wave is called the crest. The lowest part is called the trough. The wave height is the overall vertical change in height between the crest and the trough and distance between two successive crests (or troughs) is the length of the wave or wavelength.

Detailed explanation-2: -noun. na·dir ˈnā-ˌdir ˈnā-dər. Synonyms of nadir. : the point of the celestial sphere that is directly opposite the zenith and vertically downward from the observer. : the lowest point.

Detailed explanation-3: -A trough of the wave is the lowest point of the wave. The amplitude, wavelength, period, and frequency of a wave are all affected by the positions of the crests or troughs of the wave. The distance between two nearest crests or troughs of a wave is called its wavelength.

Detailed explanation-4: -peak-the highest point above the rest position; trough-the lowest point below the rest position; amplitude-the maximum displacement of a point of a wave from its rest position.

Detailed explanation-5: -What is the lowest point of a wave? The highest point of a wave is called the crest, and the lowest point of a wave is called the trough.