Question

what do ment by compression nad rarefaction of a longitudinal wave

Answer 1

However instead of crests and troughs, longitudinal waves have compressions and rarefactions. Compression. A compression is a region in a longitudinal wave where the particles are closest together. Rarefaction. A rarefaction is a region in a longitudinal wavewhere the particles are furthest apart.

Answer 2

Longitudinal waves show areas of compression and rarefaction: compressions are regions of high pressure due to particles being close together rarefactions are regions of low pressure due to particles being spread further apart Longitudinal waves are often demonstrated by pushing and pulling a stretched slinky spring.