The unit of sound pressure level, dBA is defined as – McqOptions

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1.	The unit of sound pressure level, dBA is defined as
A.	summation of measured and reference sound pressure level
B.	ratio of measured to reference sound pressure levels
C.	ratio of measured to reference sound pressure levels in logarithmic scale
D.	product of measured to reference sound pressure levels
Answer» D. product of measured to reference sound pressure levels

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