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ECE · Q102

Communication Systems

Engineering and GATE · ECE · question 102

Q102

An amplitude modulated signal is given by: S(t) = 10cos(2π × 106t) + 5cos(2π × 106t)cos(2π × 103t) + 2cos(2π × 106t)cos(4π × 103t) The effective modulation index is:

A.
0.538
Answer
B.
0.5
C.
0.2
D.
0.7

Answer: Option A

Solution

Answer: Option A
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