Electromagnetic radiation with a wavelength of 665 nm

Last updated: 7/31/2022

Electromagnetic radiation with a wavelength of 665 nm appears as orange light to the human eye. The frequency of this light is 4.51 x 10^5 2.22 x 10^-15 4.51 x 10^14 2.00 x 10^11 2.00 × 10²