The wavelength of light determines its color within the visible spectrum because different wavelengths correspond to different colors that our eyes perceive. Here’s how it works:
- Longer wavelengths correspond to colors toward the red end of the spectrum.
- Red light has the longest wavelength (around 700 nanometers).
- As the wavelength decreases, colors shift through the spectrum:
- From red to orange, yellow, green, blue, indigo, and finally violet.
- Shortest wavelengths correspond to colors toward the violet end of the spectrum.
- Violet light has the shortest wavelength (around 400 nanometers).