Multiple choice general knowledge math & puzzles

1 Angstrom is equal to

  1. 0.1Nanometer (Exactly)

  2. 0.0001 Micron (Exactly)

  3. 0.0000001 Millimeter (Exactly)

  4. All the above

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

An Angstrom is 10^-10 meters. This is equivalent to 0.1 nanometers (10^-9 m), 0.0001 microns (10^-6 m), and 0.0000001 millimeters (10^-3 m). Since all three conversions are mathematically identical to 10^-10 meters, 'All the above' is the correct choice.