Question

What is the closest light outside the visible spectrum

Answer 1

Ultraviolet radiation has a wavelength that is immediately shorter than the light in the visible spectrum.

Answer 2

UV (ultraviolet rays) - is an electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays. Light with a wavelength immediately shorter than any light in the visible spectrum is called Ultraviolet Light