Human ear has the dynamic range of 120dB and it can hear the weakest sound of 10-9
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Question:
Human ear has the dynamic range of 120dB and it can hear the weakest sound of 10-9 W/m2. If a microphone picks up a sound at 5 mW/m2, compute the maximum gain of the amplifier (in dB) to generate the loudest signal that the humans can tolerate.
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