In physics, a wave can be defined as a disturbance, which travels through a medium/no medium (vacuum) and propagates energy from one place (source) to another without the transportation of the matter.
Types of Waves
Waves can be broadly classified into two categories-
- Mechanical Wave (Longitudinal Wave and Transverse Wave)
- Electromagnetic Wave
Longitudinal Wave- In this type of wave, the particles of the medium vibrate in the direction of propagation of the wave.
Examples- Waves on Springs, Sound Waves in air.
Transverse Wave- In this type of Wave, the particles of the medium vibrate perpendicular to the direction of propagation of the wave.
Examples of Transverse Wave- Waves on Strings under tension, Waves on the surface of the water.
Electromagnetic Wave- These are the waves that do not necessarily require a medium to propagate. It means electromagnetic waves can even travel through a vacuum.
Electromagnetic Wave travels with a velocity of Light. (3 × 108)
Examples of Electromagnetic Waves- Radio Wave, X-rays, Light wave.