Perhaps you are confusing with "refraction"? Refraction means that when a wave goes from one substance to another (for example, from air to water), it changes its direction. This is related with the index of refraction in the different substances, i.e., the wave has a different speed in the different substances.
Rarefaction is the part of a longitudinal wave where the particles are spread apart.
When particles of a medium are far apart, that part of a wave is called a rarefaction. In a rarefaction, the particles are spread out, resulting in lower pressure and density compared to the surrounding medium.
A longitudinal wave can go through solids, liquids, and gases.A transversal wave will usually only go through solids. (Electromagnetic waves, however, can also go through empty space.)
Rarefaction is the less dense part of a compression wave where the particles are spread apart.
The part of a wave where molecules are spread out is called the trough. This is the lowest point of the wave, where the particles are farthest apart.
The rarefaction is the part of a compressional wave where particles are far apart. This is the region of low pressure in the wave, where particles are spread out compared to the other parts of the wave.
RAREFRACTION
Rarefaction is the part of a longitudinal wave where the particles are spread apart.
When particles of a medium are far apart, that part of a wave is called a rarefaction. In a rarefaction, the particles are spread out, resulting in lower pressure and density compared to the surrounding medium.
I believe you are referring to rarefaction. The "trough" of a compression / rarefaction wave is called rarefaction.
A longitudinal wave can go through solids, liquids, and gases.A transversal wave will usually only go through solids. (Electromagnetic waves, however, can also go through empty space.)
this kind of wave that includes compressional and rarefaction is called a longitudinal wave.
Rarefaction is the less dense part of a compression wave where the particles are spread apart.
Compression is the region of a longitudinal wave in which the density and pressure are at a maximum. Rarefaction is the region of a longitudinal wave in which the density and pressure are at a minimum.
The part of a wave where molecules are spread out is called the trough. This is the lowest point of the wave, where the particles are farthest apart.
rarefaction having low pressure............
The less dense part of a longitudinal wave is called the rarefaction. It is the region where the particles are spread out and have lower pressure compared to the denser region called compression in a longitudinal wave.