10th December 2020, 12:53 AM
Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 (with a corresponding frequency around 30 PHz) to 400 nm (750 THz), shorter than that of visible light, but longer than X-rays.


![[Image: X9V79qt.png]](https://web.archive.org/web/20260105075506if_/https://i.imgur.com/X9V79qt.png)