Discussion :: Exam Questions Paper
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The magnitude plot of a composite signal x(t) = e2jt + e3jt is
A.
Half wave rectified sinusoid
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B.
Full wave rectified sinusoid
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C.
Exponentially increasing sinusoid
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D.
Exponentially decreasing sinusoid
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Answer : Option B
Explanation :
x(t) = ej2 . 5t (e-j0.5t + e-j0 . 5t)
x(t) = 2ej2.5t cos (0.5)t
The magnitude of x(t) is
|x(t)| = 2|cos (0.5)t|.
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