Multiple choice general knowledge

The unit of loudness is

  1. Bit

  2. Coulom

  3. phon

  4. Joule
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The phon is the unit of loudness in acoustics. Bit is a unit of digital information, Coulomb is a unit of electric charge, and Joule is a unit of energy. This tests knowledge of measurement units in physics.

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