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Signals & SystemsFilters

A continuous-time ideal low-pass filter has cutoff 1 kHz. Which sinusoid is in its ideal passband?

  • A500 Hz
  • B2 kHz
  • C5 kHz
  • D10 kHz
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Correct Answer: A. 500 Hz
Explanation: An ideal low-pass filter passes frequency components below its 1 kHz cutoff.
Reference: Standard signals and systems: filters
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