(2024, digital, video, print)

Visible light, one of the components of space - an electromagnetic wave that can enter the human eye and produce a visual signal, with a wavelength range of approximately 400-700 nm, simply called light.

In other words, it is a daily term for electromagnetic waves in the visible light region that can be seen visually. The wavelength and frequency of electromagnetic waves are inversely proportional, with gamma rays the shortest wavelength, but the highest frequency per second. Each color has different wavelengths, purple has the shortest wavelength, and red has the longest wavelength. So the red series is called the long wave, and the purple series is called the short wave.