A burglar coughs with a sound intensity of 2.48 * 10 ^ - 7 * W / (m ^ 2) . A burglar alarm will ring if sound is detected 30dB above the alarm's threshold of 1.5 * 10 ^ - 10 * W / (m ^ 2) Will the burglar set off the alarm ?
The sound intensity in decibel can be found as follows:
As we can see from the calculations, the burglar will set off the alarm.
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