A.Unit of noise level
B.A logarithmic ratio between a measured quantity and a reference quantity
C.Quantity of noise per unit area
D.A logarithmic ratio between a measured quantity and 100
E.None of the above
A.Unit of noise level
B.A logarithmic ratio between a measured quantity and a reference quantity
C.Quantity of noise per unit area
D.A logarithmic ratio between a measured quantity and 100
E.None of the above