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DSSSB JE EE : Signals & Systems QUIZ-2

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Question 1

Which of the following is a non-causal system?

Question 2

The signal  is a periodic signal with a period of:

Question 3

Find the value of y(t) for the following expression,

Question 4

Identify the linear system(s) from the following list:

1) y(t) = x(t2)

2) y(t) = x2(t)

3) y(t) = Ax(t) + B

4) y(t) = ex(t)

Question 5

Laplace transform of the signal x(t) is

If the ROC is Re[s] < –2, then the inverse Laplace transform of the signal x(s) is.

Question 6

Which of the following statement is/are correct with regard to Dirichlet conditions ?

Question 7

If the signal  and , and a signal made by x1(n) and x2(n). this is  so fundamental time period of the signal x(n) is

Question 8

The signal x(t) has a time period of 2 and the following Fourier coefficients

.

Then x(t) is given by

Question 9

A signal having a spectrum ranging from dc to 10 KHz Is to be sampled and converted into discrete form. What is the minimum number of samples per second that must be taken to ensure recovery?

Question 10

What will be Fourier transform, of e–a|t| for a > 0.
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Feb 15AE & JE Exams