NCERT Class XII Chapter
Communication Systems
Questions With Solutions
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Question : 6
Total: 8
A modulating signal is a square wave, as shown in Figure.
The carrier wave is given by c(t) = 2sin(8πt) volts
(i) Sketch the amplitude modulated wave form
(ii) What is the modulation index?
The carrier wave is given by c(t) = 2sin(8πt) volts
(i) Sketch the amplitude modulated wave form
(ii) What is the modulation index?
Solution:
(i) The amplitude modulated wave is shown here :
(ii) Modulation index, µ =
(ii) Modulation index, µ =
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