# For matrix,eigen value corresponding to the eigen vectoris

1.  2

2.  4

3.  6

4.  8

4

6

Explanation :
No Explanation available for this question

# A second order system starts with an initial condition ofwithout any external input.The state transition matrix for the system is given by.The state of the system at the end of 1 second is given by

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# which of the following pairs of regular expressions are required

1.  1(01)* and (10)*1

2.  X(xx)* and (xx)*x

3.  (ab)* and a*b*

4.   All of these

4

All of these

Explanation :
No Explanation available for this question

# A major security problem for operating system is

1.  authentication problem

2.  physical problem

3.  human problem

4.  none of these

4

authentication problem

Explanation :
No Explanation available for this question

# For a random variable x following probability density function, p(x) shown in figure, mean and variance respectively are

1.  1/2 and 2/3

2.  1 and 4/3

3.  1 and 2/3

4.  2 and 4/3

4

1 and 4/3

Explanation :
No Explanation available for this question

# Noise figure of RF amplifier when operated art RF with noise temperature 150k will be

1.  1.42

2.  0.62

3.  1.62

4.  1.72

4

0.62

Explanation :
No Explanation available for this question

# The power spectral density of white noise

1.  varies as square root of frequency

2.  varies as inverse of frequency

3.  varies as square of frequency

4.  is constant with frequency

4

is constant with frequency

Explanation :
No Explanation available for this question

# Which one of the following function qualifies to be an autocorrelation function of a real valued time signal

1.  sin(ωt) Ans: c

2.  exo(-t)

3.  ∂(t)

4.  u(t)

4

∂(t)

Explanation :
No Explanation available for this question

# The auto-correlation function of white noise is

1.  a delta function

2.  a constant

3.  gaussian

4.  exp (-|t|) with tumid notation

4

a delta function

Explanation :
No Explanation available for this question

# The mean square value of the shot noise current

1.  varies inversely as average current

2.  is independent of average current

3.  varies as √ average current

4.  varies directly as average current

4