Difference between Compression and rarefactions
Compression
1.) When longitudinal wave propagates in a medium, medium divides itself in to alternate compression and rarefactions.
2.) Compressions are the reasons where particles are crowded.
3.) During formation of compression the volume of medium decreases so as to increase the density of medium.
4.) Pressure at compression also rises due to rise in density.
5.) The diagram below shows the formation of compression due to vibrations produced in tuning fork. When tuning fork vibrates outwards, the particles of air get pushed and gets crowded together to forms compression.
6.) The distance between centres of two successive compressions is known as wavelength of longitudinal wave.
Rarefaction
1.) When longitudinal wave propagates in a medium, medium divides itself in to alternate compression and rarefactions.
2.) Rarefactions are the reasons where the particles are widely spaced.
3.) During formation of rarefaction, volume of medium decreases so as to increase the density.
4.) Pressure at rarefaction also decreases due to rise in density.
5.) The diagram below shows the formation of compression due to vibrations produced in tuning fork. When tuning fork vibrates inwards, the particles of air gets rarefied and forms rarefactions.
6.) The distance between centres of two successive rarafactions is known as wavelength of longitudinal wave.