The highest frequency in the passband of a low-pass filter is called the
A) optimal frequency.
B) resonant frequency.
C) cutoff frequency.
D) pole frequency.

Question

Quizplus · Accepted Answer

The cutoff frequency marks the point at which the filter begins to attenuate signals, allowing only frequencies below the cutoff point to pass through. The resonant frequency is typically associated with bandpass filters, and the pole frequency is not a commonly used term in the context of low-pass filters. The optimal frequency is subjective and dependent on the specific application.

The Highest Frequency in the Passband of a Low-Pass Filter