What is a longitudinal wave?
PhysicsClass 10CBSEAnswered 28 May 2026
Answer
A longitudinal wave has particles vibrating parallel to the direction of wave propagation, creating alternating compressions and rarefactions.
- Requires a material medium cannot travel through vacuum.
- Classic example: Sound waves
| Feature | Longitudinal | Transverse |
|---|---|---|
| Particle motion | Parallel to wave | Perpendicular |
| Regions | Compressions/Rarefactions | Crests/Troughs |
| Example | Sound | Light, water ripples |
Longitudinal waves involve particle vibration parallel to wave travel sound is the classic example.
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