Question

Explain :-

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Compression

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Rarefaction

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Wavelength

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Answer 1

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• A compression is a region in a longitudinal wave where the particles are closest together. ... The region where the medium is compressed is known as a compression and the region where the medium is spread out is known as a rarefaction.

• Rarefaction is the reduction of an item's density, the opposite of compression. Like compression, which can travel in waves (sound waves, for instance), rarefaction waves also exist in nature. A common rarefaction wave is the area of low relative pressure following a shock wave (see picture).

• Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire. In wireless systems, this length is usually specified in meters (m), centimeters (cm) or millimeters (mm).