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This mock test of Continuous Time Fourier Transformer (CTFT) - 1 for Electronics and Communication Engineering (ECE) helps you for every Electronics and Communication Engineering (ECE) entrance exam.
This contains 10 Multiple Choice Questions for Electronics and Communication Engineering (ECE) Continuous Time Fourier Transformer (CTFT) - 1 (mcq) to study with solutions a complete question bank.
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QUESTION: 1

If f(t) is an even function, then what is its fourier transform F (jω)?

Solution:

QUESTION: 2

If the fourier transform of f(t) is f(jω), then what is the fourier transform of f(-t) ?

Solution:

QUESTION: 3

The fourier transform of real value time signal has

Solution:

QUESTION: 4

The signal x(t) is a real and odd function of ‘t’ the x(ω) is

Solution:

QUESTION: 5

A linear system has the transfer function When it is subjected to an input white noise process with a constant spectral dencity ‘A’ the spectral density of the output will be

Solution:

QUESTION: 6

The auto -correlation of a wide sense stationary random process is given by e^{-2|τ|}. The peak valve of the spectral density is

Solution:

QUESTION: 7

Which one of the following is the correct fourier transform of the unit step signal?

u(t) = 1 for t __>__ 0

= 0 for t __<__ 0

Solution:

QUESTION: 8

The fourier transform of a conjugate symmetric function is always

Solution:

QUESTION: 9

The inverse fourier transform of sgn(f)

Solution:

then

∴

∴

QUESTION: 10

Fourier transform f(jω) of an arbitrary signal has the property

Solution:

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