Here's why:

* Electromagnetic Spectrum: The electromagnetic spectrum encompasses a wide range of radiation, from low-energy radio waves to high-energy gamma rays. Visible light is just a small portion of this spectrum.

* Wave-Particle Duality: Light exhibits both wave-like and particle-like properties. As a wave, it oscillates electric and magnetic fields. As a particle, it behaves like photons.

* Speed of Light: All forms of electromagnetic radiation, including light, travel at the same speed in a vacuum, approximately 299,792,458 meters per second.

So, while we often refer to "light" in everyday language, it's scientifically more accurate to say that light is a specific type of electromagnetic radiation that our eyes can perceive.