Q.
A longitudinal wave is composed of _________.
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a
Rarefaction
b
Compression
c
Both compression and rarefaction
d
Neither compression nor rarefaction
answer is C.
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Detailed Solution
A longitudinal wave is composed of both compression and rarefaction.
Longitudinal waves are those in which the individual medium particles move in a direction that is parallel to the direction in which the disturbance is propagating. In the medium, the waves move through a succession of compressions and rarefactions.
![GCSE PHYSICS - What is a Longitudinal Wave? - What is the Wavelength of a Longitudinal Wave? - How do Particles Move in a Longitudinal Wave? - What is Compression and Rarefaction? - GCSE SCIENCE.](https://www.gcsescience.com/longitudinal-wave.gif)
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