There are two main types of progressive waves: transverse waves and longitudinal waves. Transverse waves involve particle motion perpendicular to the direction of wave propagation, with crests and troughs. Longitudinal waves involve particle motion parallel to propagation, characterized by regions of compression and rarefaction where particles are close together or spread apart.

1. Types of Waves
SYED JEHANZEB SHAH
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2. Those waves which transmit energy from one place to
another place and move away from its source are called
progressive waves or travelling waves.
There are two types of progressive waves
( a ) Transverse waves
( b) Longitudinal Waves
Progressive waves

3. (a) Transverse Waves
In a transverse wave, the particles in the medium move
perpendicular to the direction of the wave.
Parts of transverse waves:
Crest : the highest point of the wave
Trough : the lowest point of the wave

4. Transverse Waves

5. Definition:
The particles of the disturbed medium move Perpendicular
to the wave motion are called longitudinal waves or
compressional waves
Longitudinal Waves

6. Parts of longitudinal waves
Compression: where the particles are close together
Rarefaction: where the particles are spread apart

7. Compression and Rarefaction