Visible Light Spectrum Frequency

If radiation having a frequency in the visible region of the em spectrum reflects off an object say a bowl of fruit and then strikes the eyes this results in visual perception of the scene.

Visible light spectrum frequency. Since visible light is a form of a wave it is defined by its characteristic wavelength and frequency. This visible light region consists of a spectrum of wavelengths that range from approximately 700 nanometers abbreviated nm to approximately 400 nm. Expressed in more familiar units the range of wavelengths extends from 7 x 10 7 meter to 4 x 10 7 meter. It is also known as the optical spectrum of light or the spectrum of white light.

Electromagnetic radiation in this range of wavelengths is called visible light or simply light a typical human eye will respond to wavelengths from about 380 to 740 nanometers. The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. The visible light spectrum is located within a wavelength range of 380 to 740 nanometers nm or frequency range of 405 to 790 terahertz thz.

Essentially that equates to the colors the human eye can see. It ranges in wavelength from approximately 400 nanometers 4 x 10 7 m which is violet to 700 nm 7 x 10 7 m which is red. Passing white light through a prism splits it up into the several colors of light observed in the visible spectrum between 400 nm and 780 nm.