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What is the cutoff frequency of a normalized filter?

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What is the cutoff frequency of a normalized filter?

(a) 2 rad/sec

(b) 1 rad/sec

(c) 0.5 rad/sec

(d) None of the mentioned

This question was posed to me in an interview for job.

Question is from Specifications and Classification of Analog Filters in section Digital Filters Design of Digital Signal Processing

1 Answer

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Best answer
Correct option is (b) 1 rad/sec

Easy explanation: A filter is said to be normalized if the cutoff frequency of the filter, Ωc is 1 rad/sec.

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