Q. The reference pressure used in the determination of sound pressure level is
A. 20 dB
B. 20 μPa
C. 10 dB
D. 10 μPa
Answer: 20 μPa
A. 20 dB
B. 20 μPa
C. 10 dB
D. 10 μPa
Answer: 20 μPa
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