A) \[56%\]
B) \[60%\]
C) \[72%\]
D) \[84%\]
Correct Answer: B
Solution :
[b] \[{{P}_{c}}={{P}_{t}}\left( 1+\frac{{{m}^{2}}}{2} \right)\] \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,11.8=10\left( 1+\frac{{{m}^{2}}}{2} \right)\] \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,m=0.6\Rightarrow \,\,%\,\,\text{modulation = 60 }\!\!%\!\!\text{ }\]
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