Multiple choice general knowledge science & technology Which of the following light waves is outside the visible spectrum? Violet Yellow Blue Ultraviolet Reveal answer Fill a bubble to check yourself D Correct answer Explanation Ultraviolet (UV) light is outside the visible spectrum, with wavelengths shorter than violet light (~380nm). Violet, yellow, and blue are all within the visible spectrum (~380-700nm), while UV has wavelengths 10-400nm.