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Q. |
When noise is passed through a narrow band filter, the output of filter should be? |
A. | triangular |
B. | square |
C. | parabolic |
D. | sinusoidal |
Answer» D. sinusoidal | |
Explanation: narrow band filter is used to isolate a narrow band of frequencies from a wider bandwidth signal. it is a combination of band pass and band reject filter. when noise gets passed through it, the output of it should be sinusoidal. |
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