What is the definition of crest and trough?

Answer 1

it depends on what you are talking about if your talking about light here it is light can be classified as a wave when your talking about crests and troughs a crest is the top most part of the wave if you split the wave in half the trough has the same principle it is the lowest most part of the wave if you split it in half does that clarrify a little bit?

Answer 2

The number of crests passing a particular point in one second is known to be the frequency. The distance covered by the wave will be the speed of the wave. Hence the distance covered for one vibration will be c / f

This distance is nothing but the distance between successive crests or troughs.

But wavelength = c/f

Hence wavelength = distance between successive crests or troughs.

Answer 3

Crests and troughs are parts of a wave. The crests are the points at which the amplitude is at its maximum, and the troughs are the points of minimum amplitude. Think of the crest of a hill, which is its peak. The troughs would then be the valleys between the hills.

In the graph of the equation y = sin(x), the crests of the sine wave are the points where y = 1, and the troughs are where y = -1.

Answer 4

Imagine a series of waves in the water. Top edge is crest, lowest part between waves is trough, distance between crests is wavelength.

Answer 5

well two parts of the wave are the crest (top) and the trough (bottom)

Answer 6

The peak-to-peak amplitude is the distance from the trough to the crest. The wavelength is the distance from one crest to the next crest.