InterviewSolution
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InterviewSolution
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A speech signal of `3 kHz` is used to modulate a carrier signal of frequency `1 MHz`, using amplitude modulation. The frequencies of the side bands will beA. 1.003 MHz and 0.997 MHzB. 3001 kHz and 2997 kHzC. 1003 kHz and 1000 kHzD. 1 MHz and 0.997 MHz |
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Answer» Correct Answer - A Given, frequency of carrier signal is `omega_(c )` = 1 MHz and frequency of speech signal = 3 kHz `= 3 xx 10^(-3)` MHz 0.003 MHz Now, we know that, Frequencies of side bands `= (omega_(c ) pm omega_(m))` `=(1 pm 0.003)` = 1.003 MHz and 0.997 MHz |
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