Multiple choice

The unit of the intensity of sound is

  1. dyne

  2. joule

  3. knot

  4. decibel
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The decibel (dB) is the unit used to measure the intensity of sound. It quantifies sound pressure level on a logarithmic scale. Dyne is a unit of force, joule is a unit of energy/work, and knot is a unit of speed used in navigation and aviation.

Keep practicing — related questions