41. If the fourier transform of f(t) is F(jω), then what is the Fourier transform of f(-t)?
42. Which one of the following is the correct statement?
The continuous time system described by y(t) = x(t2) is
The continuous time system described by y(t) = x(t2) is
43. The final value theorem is
44. The auto correlation of a wide-sense stationary random process is given by e-2|τ|. The peak value of the spectral density is
45. Consider a continuous time system A, modelled by the equation y(t) = t.x(t) + 4 and a discrete time system B modelled by the equation y[n] = x2[n]. These systems are
46. If the step response of an initially relaxed circuit is known, then the ramp response can be obtained by
47. Mutual information I(X ; Y) between two discrete random variables X and Y is given by
48. Laplace transform of e-atf(t) is
49. Consider the following transfer functions:
$$\eqalign{
& 1.\,\frac{1}{{j\omega + 1}} \cr
& 2.\,\frac{1}{{{{\left( {j\omega + 1} \right)}^2}}} \cr
& 3.\,\frac{1}{{\left( {j\omega + 1} \right)\left( {j\omega + 2} \right)}} \cr} $$
The transfer functions which have a non linear phase are:
$$\eqalign{ & 1.\,\frac{1}{{j\omega + 1}} \cr & 2.\,\frac{1}{{{{\left( {j\omega + 1} \right)}^2}}} \cr & 3.\,\frac{1}{{\left( {j\omega + 1} \right)\left( {j\omega + 2} \right)}} \cr} $$
The transfer functions which have a non linear phase are:
50. Consider an ideal low pass filter. Such a discrete-time system is:
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