The reference pressure used in the determination for sound/pressure level is

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

A. 10 dB
B. 10 μPa
C. 20 dB
D. 20 μPa
Answer: 20 μPa