Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
Waves inside a gas are:
✓
Longitudinal
B
Transverse
C
Partly longitudinal, partly transverse
D
None of these
✓
Answer
Correct option: A.
Longitudinal
When a wave propagates through a gas, the displacement of the particle is parallel to wave propagation. Thus, it's a longitudinal wave.
Transverse waves cannot propagate in a gas or a liquid because there is no mechanism for driving motion perpendicular to the propagation of the wave.
However transverse waves can travel through solids.
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