Which of the following statements is INCORRECT?
1
The sound pressure of the faintest fastest sound that can be heard by a normal healthy individual is about 10 micropascals.
2
The sound pressure is expressed on a logarithmic scale. Sound level \(L=\log _{10} \frac{Q}{Q_0}\) Bels
3
Where Q = sound intensity, Qo = reference sound intensity
4
Measurements of the sound pressure on logarithmic scales are called levels.