Multiple choice general knowledge science & technology

Which of the following light waves is outside the visible spectrum?

  1. Violet

  2. Yellow

  3. Blue

  4. 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.