Ultraviolet rays have shorter wavelengths than visible light. The sun has the ability to emit ultraviolet radiation, which can cause skin cancer. They have a wavelength range of 10 nm to 400 nm.
Source: “UV Rays.” Ns-Mart, www.ns-mart.com/uploads/UV Rays.png.
Ultraviolet light is used in tanning beds to make skin darker.
Ultraviolet light can be used for flourescent lighting.
Ultraviolet light can be used to kill bacteria.