1
GATE ECE 2015 Set 1
Numerical
+2
-0
In the system shown in Figure (a), m(t) is a low-pass signal with bandwidth W Hz. The frequency response of the band-pass filter H(f) is shown in Figure (b). If it is desired that the output signal z(t) = 10x(t), the maximum value of W (in Hz) should be strictly less than ___________________________ GATE ECE 2015 Set 1 Signals and Systems - Transmission of Signal Through Continuous Time LTI Systems Question 10 English
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2
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
The 3 - dB bandwidth of the low - pass signal $${e^{ - 1}}$$ u(t), where u(t) is the unit step function, is given by
A
$${1 \over {2\pi }}Hz$$
B
$${1 \over {2\pi }}\sqrt {\sqrt 2 - 1\,} Hz$$
C
$$\infty $$
D
1 Hz
3
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
A system has poles at 0.01 Hz, 1 Hz and 80 Hz; zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is
A
$$ - {90^ \circ }$$
B
$$ {0^ \circ }$$
C
$$ {90^ \circ }$$
D
$$ - {180^ \circ }$$
4
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
Consider the signal x(t) shown in Fig. Let h(t) denote the impulse response of the filter matched to x(t), with h(t) being non-zero only in the interval 0 to 4 sec. The slope of h(t) in the interval 3 < t < 4 sec is GATE ECE 2004 Signals and Systems - Transmission of Signal Through Continuous Time LTI Systems Question 19 English
A
$$1/2\,{\sec ^{ - 1}}$$
B
$$-1\,{\sec ^{ - 1}}$$
C
$$-1/2\,{\sec ^{ - 1}}$$
D
$$1\,{\sec ^{ - 1}}$$
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