Multiple choice general knowledge

The intensity level of sound is measured in

  1. Hertz

  2. Bel

  3. Joules

  4. Angstrom
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Bel, named after Alexander Graham Bell, is the logarithmic unit used to measure sound intensity level, though the decibel is more commonly used in practice. Hertz measures frequency, Joules measure energy, and Angstroms measure length.

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