MCQOPTIONS
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| 1. |
A normal conversation have sound intensities of 3×10-6Wm-2. The decibel level for the intensity is |
| A. | 50 dB |
| B. | 64.8 dB |
| C. | 70.5 dB |
| D. | 48.8 dB |
| Answer» C. 70.5 dB | |