Multiple choice

Which of the following units of length is used to measure wavelength of infrared laser?

  1. Light year

  2. Microns

  3. Angstroms

  4. None of these

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

The wavelength of infrared laser light is typically in the micrometer (micron) range. Angstroms are too small for infrared, and light years are far too large.