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Comm Diss 311-page9 - 16. verticalline(Ofcourse...

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16. The amplitude spectrum of a sine wave of reasonable duration is a single vertical line. (Of course) 17. The frequency of a sinewave having a 2‐msec period is 400 Hz. (No, 500 Hz) 18. The frequency of a sinewave with a 1‐msec period is 10,000 Hz. (No, 1000 Hz) 19. The period of a sinewave with a frequency of 1000 Hz is 1 msec. (absolutely) 20. The period of a sinewave with a frequency of 200 Hz is 5 msec. (Si) 21. If two sinewaves have the same peak amplitude and same frequency they are necessarily identical waveforms. (No because the starting phase could be different) 22. A sine wave that starts at 0 amplitude must have 0‐degree starting phase. (No, could be 180 degrees) 23. A square wave and a triangle wave contain the same spectral components and differ only in the rate of fall‐off in amplitude of the components with increasing frequency. (True) 24. A square wave is composed of both odd and even harmonics. (No, odd only) 25. A sawtooth wave is composed of both odd and even harmonics. (True) 26. If the fundamental frequency of a wave is 300 Hz and the next three frequencies
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