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The term ___________ is used when referring to the frequency content of a signal.

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The term ___________ is used when referring to the frequency content of a signal.

(a) angular momentum

(b) spectrum

(c) scope

(d) bandwidth

I got this question by my school teacher while I was bunking the class.

The query is from The Main Amplifier and Driver Stage topic in division Recording System of Biomedical Instrumentation

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Correct answer is (b) spectrum

Explanation: The term spectrum is used when referring to the frequency content of a signal.  The basic motivation for developing frequency analysis tools is to provide a mathematical and pictorial representation for the frequency components that are contained in any given signal.  Most biomedical signals of practical interest can be decomposed into a sum of sinusoidal signal components.

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