Question

Loop filter is a ______ used to reduce noise.

(a) Low pass filter

(b) High pass filter

(c) Band pass filter

(d) Band reject filter

I had been asked this question by my school teacher while I was bunking the class.

This intriguing question comes from Digital Communication System in division Signals and Spectra of Digital Communications

Answer 1

The correct choice is (a) Low pass filter

To elaborate: Loop filter is a low pass filter used to reduce noise.