1.  

2.  2e-t cost u(t)

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

The relationship between the input x(t) and output y(t) of a causal system is defined as The impulse response of system is

1.  3e-t u(t)+2e2t u(-t)

2.  (3e-t+2e2t) u(t)

3.  3e-t u(t)-2e2t u(-t)

4.  (3e-t -2e2t) u(-t)

View Answer  
4
Correct Answer :

(3e-t+2e2t) u(t)


Explanation :
No Explanation available for this question

The raised cosine pulse x(t) is defined as The total energy of x(t) is

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

Sinusoidal signal x(t)= 4 cos(200t+π/6) is passed through a square law device defined by the input output relation y(t)=x2(t). The DC component in the signal is

1.  3.46

2.  4

3.  2.83

4.  8

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4
Correct Answer :

8


Explanation :
No Explanation available for this question

If The y(t)=x(t)*h)(t) is

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

If the signal x(t)=δ(t=2)-δ(t-2), then value of E∞ for the signal

1.  4

2.  2

3.  1

4.  ∞

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

The even part of a function X[n]= u[n]-u[n-4] is

1.  

2.  

3.  

4.  All of these

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4
Correct Answer :

All of these


Explanation :
No Explanation available for this question

Energy of the signal A[n] is

1.  A2

2.  

3.  

4.  0

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4
Correct Answer :

A2


Explanation :
No Explanation available for this question

Energy of the signal nu[n] is

1.  

2.  

3.  

4.  ∞

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4
Correct Answer :

∞


Explanation :
No Explanation available for this question

x[n] and y[n] are given in figure below  X[2n]

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question
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