Multiple choice

Gamma rays measures about one billionth of a meter.

  1. True

  2. False

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

Gamma rays have wavelengths much shorter than one billionth of a meter (typically less than 10 picometers or 10^-11 meters). One billionth of a meter is a nanometer, which corresponds to light in the visible/UV range.