Ultra Violet Rays
What about it?
An Ultra Violet ray is a form of radiation which is not visible to a human's eye. it's in an invisible part of the electromagnet spectrum. Radiation is given off by many objects. A light bulb, a fire, and stars are some examples of objects which emit radiation.
The wavelength of Ultraviolet is about 380 nanometers to 10 nanometers.
The frequency range of Ultraviolet is about 8 x 10 to the 14th power to 3 × 10 to the 16th power.
Velocity in Vacuum
The velocity in a vacuum is 300,000,000 m/s.