Respuesta :
So we want to know the two main physical quantities that describe the wave. Those are frequency and wavelength. These two quantities are connected via the equation: v=f*L, where v is velocity of a wave, f is frequency of a wave and L is the wavelength of the wave. So I'd go with B
Answer:
Option C, Crest and Trough
Explanation:
A wave has two structural parts-
a) Crest - A crest is the lowermost part of the wave
b) Trough – A trough is the uppermost part of the wave
Wavelength in the horizontal distance between the mid points of two crests or two troughs while Wave height is the distance between the lowest and the highest point of a wave.
Thus, it is clear that crest and troughs are the essential units of construction of a wave while wave height and wavelength are the vertical and horizontal distances between the two wave components respectively.
