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What is the frequency range of amplifier used for a phonocardiograph?(a) less than 0 Hz(b) 0 to 20 Hz(c) 20 to 2000 Hz(d) above 2000 HzThis question was addressed to me in a national level competition.My question is based upon Measurement of Temperature in chapter Patient Monitoring System of Biomedical Instrumentation

Answer»

The CORRECT answer is (c) 20 to 2000 Hz

The BEST I can explain: The amplifier used for a phonocardiograph has WIDE bandwidth with a frequency range of about 20 to 2000 Hz. Filters permit selection of suitable frequency BANDS, so that particular heart sound frequencies can be recorded.



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