The spectrum of a signal is:
A)the lowest frequency value subtracted from the highest
B)the range of frequencies in the signal
C)all of the frequencies from 0 to the highest frequency used
D)the average of the highest frequency and the lowest

Question

Quizplus · Accepted Answer

The spectrum of a signal refers to the range of frequencies present in that signal, which is best described by option B. Option A is incorrect because the spectrum does not involve subtraction of any frequency values. Option C is incorrect because it suggests that the spectrum includes all possible frequencies up to the highest frequency used, which may not necessarily be present in the signal. Option D is incorrect because it suggests that the spectrum is the average of the highest and lowest frequency, which is not a meaningful quantity when considering the spectral content of a signal.

The Spectrum of a Signal Is