Here's why:
* Electromagnetic Spectrum: The electromagnetic spectrum encompasses all types of electromagnetic radiation, from low-frequency radio waves to high-frequency gamma rays.
* Frequency and Wavelength: Frequency and wavelength are inversely proportional. This means that a lower frequency corresponds to a longer wavelength.
* Visible Light: The visible light portion of the electromagnetic spectrum is what we perceive as colors. Red light has the longest wavelength and therefore the lowest frequency within the visible spectrum.
Think of it this way: Red light is at the "end" of the rainbow, while violet light is at the "beginning." The colors go in order of increasing frequency (and decreasing wavelength) from red to violet.
