When noise is passed through a narrow band filter, the output of filter should be?
A)triangular
B)square
C)parabolic
D)sinusoidal

Question

Quizplus · Accepted Answer

When noise is passed through a narrow band filter, the output is sinusoidal. This is because a narrow band filter essentially allows a narrow range of frequencies to pass through, filtering out frequencies outside this range. Since noise contains a wide spectrum of frequencies, filtering it narrowly results in a dominant frequency component, which is represented as a sinusoidal wave.

When Noise Is Passed Through a Narrow Band Filter, the Output