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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A filter passes certain frequencies and rejects others. |
| Answer» Filters that are designed to remove certain frequencies and allow others. Band- pass filter - only frequencies in a frequency band are passed. Notch filter - rejects just one specific frequency. | |