Basically waves can be three types:
- Mechanical waves
- Electromagnetic waves
- Matter waves
Waves which can be produced and propagated only in a material medium are known as mechanical waves.
Water waves, sound waves, waves on string, seismic waves etc. are the example of mechanical waves.
The propagation of mechanical wave depends on the elasticity and inertia of the medium. Thus, these waves are known as elastic waves.
Mechanical waves are two types: Transverse waves and longitudinal waves.
Waves on the water surface, light waves, wave generated on the string etc are the examples of transverse waves.
Sound wave propagated in air is the example of longitudinal waves.
Those waves which requires no material medium for their production and propagation, this means it propagates in vacuum. Such waves are called electromagnetic waves.
Visible light, ultraviolet light, radio waves, microwaves, X-rays etc are the examples of electromagnetic waves.
These waves are associated with moving particles of matter like electrons, protons, neutrons, atoms, molecules etc.