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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 | |
A. | 0.632 N/m2 [Correct Answer] |
B. | 0.707 N/m2 [Wrong Answer] |
C. | 0.835 N/m2 [Wrong Answer] |
D. | 0.925 N/m2 [Wrong Answer] |