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115.
For a Z-transform X(z) = [z(2z - 5/6)]/[(z - 1/2)(z - 1/3)]
Match List I (The sequences) with List II (The region of convergence) and select the correct answer.List I
A. [(1/2)n + (1/3)n] u(n)
B. (1/2)n u(n) – (1/3)n u(–n–1)
C. – (1/2)n u(–n–1) + (1/3)n u(n)
D. –[(1/2)n + (1/3)n] u (–n–1)List II
1. (1/3) < |z| < (1/2)
2. |z| < (1/3)
3. |z| < 1/3 and |z| > 1/2
4. |z| > 1/2
b. A→1, B→3, C→4, D→2
c. A→4, B→3, C→1, D→2
d. A→1, B→2, C→4, D→3
asked in Electronics Paper-1, 2002
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116.
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117.
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118.
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119.
Match List I with List II and select the correct answer :
List I (Type of signal)
A. Real and even symmetric
B. Real and odd symmetric
C. Imaginary arid even symmetric
D. Imaginary and odd symmetricList II (Property of Fourier transform)
1. Imaginary and even symmetric
2. Real and even symmetric
3. Rea1 odd symmetric
4. Imaginary and odd symmetric
b. A→2, B→4, C→1, D→3
c. A→1, B→3, C→2, D→4
d. A→2, B→3, C→1, D→4
asked in Electronics Paper-1, 2002
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120.
Match List I with List II and select the correct answer:
List I (Functions)
A. exp (–αt) u(t), a > 0
B. exp (α |t|)] α > 0
C. t exp (–αt) u(t), α > 0
D. exp (j 2παt/t0)List II (Fourier transforms)
1. 1/(α+j2πf)2
2. 1/(α+j2πf)
3. δ(f - α/to)
4. 2α/[α2 +(2πf)2 ]
b. A→2, B→4, C→1, D→3
c. A→3, B→4, C→1, D→2
d. A→2, B→1, C→4, D→3
asked in Electronics Paper-1, 2002
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