The distance between one wave crest to the next or from trough is called
Wavelength
Wavelength is the distance between consecutive corresponding points of the same phase on the wave, such as from crest to crest, trough to trough, or any point on one cycle to the corresponding point on the next cycle.
Sound waves are:
1. Longitudinal waves
2. Transverse waves
Sound waves in air are
All of the following can propagate through vacuum except
Sound cannot travel through ______