Question

Sound above ____ is considered noise.

• A. $80\text{dB}$
• B. $20\text{dB}$
• C. $180\text{dB}$
• D. $50\text{dB}$

Answer 1

The correct option is A $80\text{dB}$

Sound above $80\text{dB}$ is considered noise because it is unpleasant to hear and cause many effects like headache and irritation.​