If reference sound pressure P0 is 2 x 10-5 N/m2, a sound pressure of 9

1.	If reference sound pressure P0 is 2 x 10-5 N/m2, a sound pressure of 90 dB is equal to
A.	0.632 N/m2
B.	0.707 N/m2
C.	0.835 N/m2
D.	0.925 N/m2
Answer» B. 0.707 N/m2

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If reference sound pressure P0 is 2 x 10-5 N/m2, a sound pressure of 90 dB is equal to

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