# For a N-point FET algorithm N =2m which one of the following statements is TRUE

1.  It is not possible to construct a signal flow graph with both input and output in normal order

2.  The number of butterflies in the mth stage in N/m

3.  In- place computation requires storage of only 2N data

4.  Computation of a butterfly requires only one complex multiplication.

4

Computation of a butterfly requires only one complex multiplication.

Explanation :
No Explanation available for this question

# The transfer function Y(s)/R(s) of the system shown is

1.  0

2.  1/(s+1)

3.  2/(s+1)

4.  2/(s+3)

4

1/(s+1)

Explanation :
No Explanation available for this question

# A system with transfer function [Y(s)/X(s)]=[s/(s+p)] has an output y(t)= cos(2t-(π/3)), then the system parameter p is

1.  √3

2.  2/√3

3.  1

4.  √3/2

4

2/√3

Explanation :
No Explanation available for this question

# Suppose that the modulating signal is m(t)=2cos(2πfmt) and the carrier signal is xc(t)=Ac cos(2πfct) which one of the following is a conventional AM signal without over-modulation

1.  x(t)= Ac m(t) cos(2πfc t)

2.  x(t)= Ac [1+m(t) ]cos(2πfc t)

3.  x(t)= Ac cos(2πfc t)+Ac/4m(t) cos (2πfc t)

4.  x(t)= Ac cos(2πfm t) cos (2πfc t)+Acsin(2πfm t) sin(2πfc t)

4

x(t)= Ac [1+m(t) ]cos(2πfc t)

Explanation :
No Explanation available for this question

# Consider an angle modulated signal x(t)=6cos[2π x 106t+2sin(800 πt)+4 cos(800pt) the average power of  x(t) is

1.  10 w

2.  18 w

3.  20 w

4.  28 w

4

18 w

Explanation :
No Explanation available for this question

# A transmission line has a characteristic impedance of 50 and a resistance of 0.1 ? /m. If the line is distortion less, the attenuation constant (in Np/m) is

1.  500

2.  5

3.  0.014

4.  0.002

4

0.002

Explanation :
No Explanation available for this question

# The electric field component of a time harmonic plane EM wave traveling in a nonmagnetic lossless dielectric medium has an amplitude of 1 V/m. If the relative permittivity of the medium is 4, the magnitude of the time-average power density vector (in W/m2)is

1.  1/30π

2.  1/60 π

3.  1/120 π

4.  1/240 π

4

1/120 π

Explanation :
No Explanation available for this question

# If ey =x1/2 then y has a

1.  Maximum at x=e

2.  Minimum at x=e

3.  Maximum at x=e -1

4.  Minimum at x=e -1

4

Maximum at x=e -1

Explanation :
No Explanation available for this question

# A fair coin is tossed independently four times. The probability of the event "the number of time heads shown up is more than the number of times tail shown up"

1.  1/16

2.  1/8

3.  1/4

4.  5/16

4

1/16

Explanation :
No Explanation available for this question

# The residues of a complex function X(z)=(1-12z)/[z(z-1)(z-2)] at its pole are

1.  1/2,-(1/2) and 1

2.  1/2,1/2 and -1

3.  1/2,-1 and -3/2

4.  1/2,-1 and 3/2

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