alleryIf the displacement of the medium is parallel to the direction of travel, the wave is:
ALongsuffering
BLongitudinal
CLongstanding
DLongitudinally
Answer & Solution
Correct answer: B. Longitudinal
1. The other class has the medium moving along the line of travel.
2. Sound in air behaves this way.
3. In a longitudinal wave the displacement is parallel to the direction of propagation.
4. So the answer is longitudinal.
_Source: syllabus Physics Part II, Ch 14 'Waves'_
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