Multiple choice general knowledge science & technology

wavelength of infrared light to be seen by humans is

  1. long

  2. short

  3. fat

  4. cylindrical

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Infrared light has longer wavelengths than visible light, which is why it's invisible to the human eye. The electromagnetic spectrum places infrared just beyond visible red light, with wavelengths extending from about 700 nanometers to 1 millimeter.