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1
GATE ECE 1999
MCQ (Single Correct Answer)
+1
-0.3
A signal x(t) has a Fourier transform X ($$\omega $$). If x(t) is a real and odd function of t, then X($$\omega $$) is
A
a real and even function of $$\omega $$
B
an imaginary and odd function of $$\omega $$
C
an imaginary and even function of $$\omega $$
D
a real and odd function of $$\omega $$
2
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The Fourier transform of a function x(t) is X(f). The Fourier transform of $${{dx(t)} \over {dt}}$$ will be
A
$${{dX(f)} \over {dt}}$$
B
$$j2\pi fX(f)$$
C
$$jfX(f)$$
D
$${{X(f)} \over {jf}}$$
3
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
$$Vol{t^2}$$
4
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
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GATE ECE Subjects

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General Aptitude
Verbal Ability Logical Reasoning Numerical Ability
Network Theory
Network Elements Sinusoidal Steady State Response Network Theorems Two Port Networks Network Graphs Transient Response State Equations For Networks Miscellaneous
Microprocessors
Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming with 8085
Signals and Systems
Discrete Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Representation of Continuous Time Signal Fourier Series Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Continuous Time Linear Invariant System Discrete Time Signal Z Transform Sampling
Electromagnetics
Waveguides Miscellaneous Antennas Transmission Lines Uniform Plane Waves Maxwell Equations
Digital Circuits
Sequential Circuits Number System and Code Convertions Logic Gates Combinational Circuits Semiconductor Memories Logic Families Analog to Digital and Digital to Analog Converters Boolean Algebra
Electronic Devices and VLSI
PN Junction Semiconductor Physics IC Basics and MOSFET BJT and FET
Control Systems
Stability Frequency Response Analysis Compensators State Space Analysis Root Locus Diagram Signal Flow Graph and Block Diagram Time Response Analysis Basic of Control Systems
Communications
Analog Communication Systems Noise In Digital Communication Random Signals and Noise Fundamentals of Information Theory Digital Communication Systems
Engineering Mathematics
Probability and Statistics Linear Algebra Complex Variable Transform Theory Vector Calculus Differential Equations Calculus Numerical Methods
Analog Circuits
Frequency Response Operational Amplifier Power Amplifier Diodes Oscillators Feedback Amplifier 555 Timer Bipolar Junction Transistor FET and MOSFET
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