A carrier of frequency 1 MHz is amplitude modulated by a signal of frequency 1 kHz to a depth of 60%. This is passed through a filter of characteristics shown in the given Figure-I and Figure-II. If the filter output is fed to an envelope detector, the detector output will be
A. zero
B. dc
C. dc + 1 kHz signal
D. 1 kHz signal
Answer: Option B
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