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Practice over 1000+ GATE-level questions from this topic!

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Q#1 Sampling GATE EC 2017 MCQ +2 marks -0.66 marks

The signal , where t is in seconds, is sampled at a rate of 9000 samples per second. The sampled signal is the input to an ideal lowpass filter with frequency response H (f) as follows:  

What is the number of sinusoids in the output and their frequencies in kHz?

Number = 1, frequency = 7

Number = 3, frequencies = 2, 7, 11

Number = 2, frequencies = 2, 7

Number = 2, frequencies = 7.11

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