Question

Give the high and low wavelength values that define the visible region of the electromagnetic spectrum.

Short answer

The visible light spectrum is defined by wavelengths between 400 and 700 nanometers.

Step-by-step solution

Understand the Electromagnetic Spectrum

The electromagnetic spectrum encompasses all types of electromagnetic radiation, sorted by their frequency and wavelength. There's a small portion of the spectrum that human eyes can perceive: the visible light spectrum.

Define the Visible Light Spectrum

Visible light is typically defined as having wavelengths in the range of 400–700 nanometers (nm), between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). This wavelength means a frequency range of roughly 430–790 THz (Terahertz).