The spreading of molecules of sound. :)
rarefraction
rarefraction
Rarefraction
RAREFRACTION
rarefraction
compression and rarefraction
A rarefaction is a decrease in density or pressure in a medium, typically related to the spreading out of waves. In the context of sound waves, rarefaction is the region in a longitudinal wave where the particles are farther apart.
i don't know but the last comment was very inappropriate.
a series copression and rarefraction traving through a medium
Rarefraction is part of asound wave where the particles of the medium through which it is travelling are spread out.
A region of increased pressure in a longitudinal wave is called a compression. Compressions occur when particles are closer together, resulting in higher pressure.
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.