Multiple choice general knowledge science & technology

What does Angstrom measure

  1. Quantity of liquid

  2. Length of light waves

  3. Length of cables

  4. Speed of ships
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An angstrom (A) is a unit of length equal to 10^-10 meters or 0.1 nanometers, commonly used to measure the wavelength of light and atomic-scale distances. While it can measure any small length, its most common application is for electromagnetic waves, including visible light.

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