Question

is the unit that expresses the loudness of a sound.

• A. Hertz ($\text{Hz}$)
• B. Decibel ($\text{dB}$)
• C. Kilogram ($\text{kg}$)

Answer 1

The correct option is B Decibel ($\text{dB}$)

Decibel is the unit that expresses how loud or soft a sound is. The higher the value, the louder the sound is. Decibel is denoted by the symbol $\text{dB}$.