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Filter that amplifies frequency above a certain value is called?

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in Biomedical Instrumentation by (76.6k points)
Filter that amplifies frequency above a certain value is called?

(a) low pass filter

(b) high pass filter

(c) band pass filter

(d) band stop filter

The question was posed to me during an internship interview.

This intriguing question originated from Smart Sensors topic in chapter Physiological Transducers of Biomedical Instrumentation

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Right choice is (b) high pass filter

The best I can explain: High pass filter amplifies signal above a certain frequency. Low pass filter amplifies signals below a certain frequency. Band pass filter amplifies frequencies within a certain band. Band stop filter amplifies all the frequencies except those in a certain band.

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