Discussion :: Exam Questions Paper
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A periodic rectangular signal, x(t) has the waveform shown in the given figure. Frequency of the fifth harmonic of its spectrum is __________
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Answer : Option D
Explanation :
The periodic time = 4 ms = 4 x 10-3 s
∴ The fundamental frequency 
∴ Frequency of the 5th harmonic
= 250 x 5 = 1250 Hz.
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