1
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The Fourier transform of a voltage of a voltage signal x(t) is X(f). The unit of |X(f)| is
A
Volt
B
Volt - sec
C
Volt/sec
D
$$Vol{t^2}$$
2
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The amplitude spectrum of a Gaussian pulse is
A
uniform
B
a sine function
C
Gaussian
D
an impulse function
3
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
The function f(t) has the Fourier Transform g($$\omega $$). The Fourier Transform of $$$g(t) = \left( {\int\limits_{ - \infty }^\infty {g(t){e^{ - j\omega t}}} } \right)\,is$$$
A
$${1 \over {2\pi }}f(\omega )$$
B
$${1 \over {2\pi }}f( - \omega )$$
C
$$2\pi \,f( - \omega )$$
D
none of the above
4
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
The Fourier transform of a real valued time signal has
A
odd symmetry
B
even symmetry
C
conjugate symmetry
D
no symmetry
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