Here's why:
* No Medium: Electromagnetic radiation consists of oscillating electric and magnetic fields that propagate through space. They do not require a material medium like air, water, or solid to travel.
* Can Go Through Matter: While they don't need matter to travel, electromagnetic waves can interact with matter. This interaction depends on the frequency of the wave. Some examples:
* Visible Light: Passes through glass and water, but is absorbed by opaque objects.
* X-rays: Can penetrate flesh but are absorbed by bone.
* Radio Waves: Can pass through walls but are reflected by metal objects.
Examples of electromagnetic radiation:
* Radio waves
* Microwaves
* Infrared radiation
* Visible light
* Ultraviolet radiation
* X-rays
* Gamma rays
