Here's why:
* Electromagnetic Spectrum: The electromagnetic spectrum encompasses all types of electromagnetic radiation, from low-energy radio waves to high-energy gamma rays. Visible light is just a small portion of this spectrum.
* Wavelength and Energy: Wavelength and energy are inversely proportional. This means that longer wavelengths correspond to lower energy, while shorter wavelengths correspond to higher energy.
* Red Light vs. Infrared: Red light is at the edge of the visible light spectrum, while infrared radiation sits just beyond it, moving towards longer wavelengths and lower energy.
In summary, the order from shortest to longest wavelength (and highest to lowest energy) is:
1. Gamma rays
2. X-rays
3. Ultraviolet radiation
4. Visible light (including red)
5. Infrared radiation
6. Microwaves
7. Radio waves
