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Signals and System

Authored by Dr. Acharyya

Instructional Technology

3rd Grade

Used 7+ times

Signals and System
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Fourier transform of a Gaussian pulse is

Uniform

Gaussian

A pair of impulses  

Raleigh

2.

MULTIPLE CHOICE QUESTION

1 min • 20 pts

-0.5

0

0.25

0.5

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

The convolution of u(t) with u(t) will be equal to

u(t)

tu(t)

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

The trigonometric Fourier series of an even function does not have the

dc term

cosine term

sine terms

odd harmonic terms

5.

MULTIPLE CHOICE QUESTION

1 min • 20 pts

y[n] denotes output and x [n] denotes input of a discrete-time system given by the diffrence equation y[n] - 0.8y[n - 1] = x[n] + 1.25x[n + 1]. Its right-sided impulse response is

causal

unbounded

periodic

non-negative

6.

MULTIPLE CHOICE QUESTION

1 min • 20 pts

A signal x(t) is given by

7.

MULTIPLE CHOICE QUESTION

1 min • 20 pts

Let x(t) be a periodic signal with time period T.Let y(t) = x(t - t0) + x(t + t0) for some t0.The Fourier series coeffients of y(t) are denoted by bk. If bk = 0 for all odd k, then t0 can be equal to

T/8

T/4

T/2

2T

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