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
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B Correct answer
Explanation

An Angstrom is a unit of length equal to 10 to the power of -10 meters, commonly used to express wavelengths of electromagnetic radiation like light, ultraviolet, and X-rays. It is named after the Swedish physicist Anders Jonas Angstrom. Therefore, it measures the length of light waves.

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