Question

Sound can be painful to hear, and causes ear damage, when its loudness exceeds ________.

• A. $80\text{dB}$
• B. $100\text{dB}$
• C. $120\text{dB}$
• D. $140\text{dB}$

Answer 1

The correct option is D $140\text{dB}$

The loudness of sound is a characteristic related to the amplitude of the sound. It is measured in decibel ($\text{dB}$). When sound exceeds a particular value of loudness, it becomes irritating and unpleasant. Sounds above the loudness limit of $140\text{dB}$, can cause serious damage to the ear. Examples of such sounds include sounds from jet planes, or warships, and nuclear explosions.