Ultra violet light is not visible!
Lower
The color violet has the highest energy among the visible colors. It has the shortest wavelength and the highest frequency in the visible spectrum.
The ultraviolet spectrum is 'beyond' (ultra) the violet part of the visible spectrum, that is, beyond the short end of the wavelength range. The infrared spectrum is 'within' (infra) the long end of the wavelength range. The two terms have nothing to do with color, which defines the visible spectrum between violet and red.
"UV" (ultra-violet) is radiation with shorter wavelength/higher frequency than visible. Infrared is radiation with longer wavelength/lower frequency than visible.
You can see visible light but not ultra violet light.
Ultra violet
Violet light has a shorter wavelength than red light. In the visible light spectrum, colors with shorter wavelengths, like violet, are located at the higher end of the spectrum, while colors with longer wavelengths, like red, are at the lower end.
No, ultraviolet radiation has shorter wavelengths than violet light. Violet light is at the end of the visible light spectrum with longer wavelengths compared to ultraviolet radiation, which falls just beyond the violet end of the spectrum.
They may emit some energy in that wavelength, but most of their output is in the ordinary visible band.
An ultra violet (UV) ray is an electromagnetic wave, it is the same kind as visible light wave just with a different wavelength and frequency. Both travel and the speed of light. It is a transverse wave
ultra violet
Ultra violet radiation has a shorter wavelength than visible light; this is true regardless of whether it is a star or any other source that is emitting it.