A) 0.20
B) 5.0
C) 0.67
D) 1.5
Correct Answer: B
Solution :
The formula for modulating index is given by \[{{m}_{f}}=\frac{\delta }{{{\nu }_{m}}}=\frac{\text{Frequency variation }}{\text{Modulating frequency}}=\frac{10\times {{10}^{3}}}{2\times {{10}^{3}}}=5\]
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