Fényhullámhosszak

Fényhullámhosszak refers to the wavelengths of light. Light, as an electromagnetic wave, is characterized by its wavelength, which is the spatial period of the wave, the distance over which the wave's shape repeats. This property determines the color of visible light and influences how light interacts with matter.

The visible spectrum, the portion of the electromagnetic spectrum that is detectable by the human eye, ranges from approximately 380 nanometers (nm) to 750 nm. Shorter wavelengths within this range correspond to violet and blue light, while longer wavelengths correspond to orange and red light. For instance, violet light has a wavelength around 380-450 nm, blue light is around 450-495 nm, green light is around 495-570 nm, yellow light is around 570-590 nm, orange light is around 590-620 nm, and red light is around 620-750 nm.

Beyond the visible spectrum, there are other regions of electromagnetic radiation characterized by different wavelengths. Ultraviolet (UV) radiation has shorter wavelengths than visible light, typically below 380 nm, and is known for its ability to cause sunburn and vitamin D production. Infrared (IR) radiation has longer wavelengths than visible light, typically above 750 nm, and is associated with heat. These different wavelengths carry varying amounts of energy, with shorter wavelengths having higher energy. Understanding light wavelengths is fundamental in fields such as optics, spectroscopy, photography, and astronomy.