Where does black fall on the color spectrum ... a photon. Its frequency is how fast it vibrates back and forth – or oscillates – as it travels. And its wavelength is the distance between ...

The colors of the rainbow always show up in the same order: red, orange, yellow, green, blue, indigo and violet. It's organized by wavelength. Red, with the longest wavelength, is on the outside ...

Each type of light has a different wavelength and frequency. Understanding the electromagnetic spectrum ... The electromagnetic spectrum is a rainbow of light waves that surround us — but we only see ...