Assertion: ultraviolet's wavelength | /r/HasProperty | 400 nm
Facets:
Source sentences:
text: The ultraviolet is much more intense and has a shorter wavelength (400 nm to 10 nm) compared to visible light.
text: The wavelength of violet light is around 400 nanometers (or 4,000 Å).
text: The longer wave lengths, around 700 nm, are seen by humans as red, and the shorter wavelengths, around 400 nm, are seen as blue or violet.
text: Wavelengths of light which are shorter than 400 nm are not seen by normal humans, and light in this range is called ultraviolet.