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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class12  >>  Communication Systems
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In amplitude modulation

$\begin{array}{1 1}(a)\;\text{amplitude of carrier wave remains constant}\\(b)\; \text{the amplitude of the carrier wave varies accordingly to the frequency of the modulating signal }\\(c)\;\text{the amplitude of the carrier wave varies accordingly to the amplitude of the modulating signal }\\(d)\;\text{Modulating frequency lies in the radio range}\end{array}$

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In amplitude modulation the amplitude of the carrier wave varies according to the amplitude of the modulating signal.
Hence (c) is the correct option.
answered Mar 17, 2014 by sreemathi.v
 
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