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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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