The highest point of a transverse wave is known as the crest, while the lowest point is called the trough. When the crest of one wave strikes against the trough of another wave, the forces of energy working in opposite directions with cancel out the effects of each other.
From crest to crest, trough to trough or rest position to rest position
From crest to crest or trough to trough
Is the wave length
From crest to crest or trough to trough
wavelength
The wavelength of a wave is the distance between two identical parts of a wave in successive periods (crest to crest, trough to trough, etc.).
The distance from a crest to a crest or a trough to a trough in a wave.
Wavelength
it has to do with waves. trough- is the bottom of the wave crest- is the top of the wave
Wavelength.
Usually it is shown in diagrams as from where the variable passes across the zero line, but your way will give the same result. It is the length of one complete cycle that matters.
they annihilate each other