Question

Match the following sounds with their suitable decibels.

• A. $140dB$
• B. $10dB$
• C. $70dB$
• D. $30dB$

Answer 1

Loudness of a sound depends on its intensity. Intensity is a measurable quantity while loudness is a sensation.
The normal whisper of a human being can produce a loudness of $10dB$.
The jet engines can produce a loudness of about $140dB$.
The traffic can produce a loudness of $70dB$.
The average human breathing can produce a loudness of $30dB$.