Question

What do you understand by the term loudness of sound?

Answer 1

Loudness

1. Loudness is a property of sound that depends on the amplitude of sound waves.
2. If the amplitude of the sound wave is large, the sound is said to be loud.
3. Loudness is directly proportional to the square of the vibration amplitude and is expressed in decibels (dB).
4. Therefore, the sound having loudness above 80 dB is noise to the human ear.