Question

Loudness of sound is expressed in the units of

hertz

decible

frequency

wave

​

Answer 1

Answer:

Decibel (dB)

Decibel (dB), unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds. One decibel (0.1 bel) equals 10 times the common logarithm of the power ratio.

Answer 2

Answer:

decible i think so

Explanation:

if right mark as brainlist