Question 31 : Is the discrete time LTI system with impulse response h(n)=aⁿ(n) (|a| < 1) BIBO stable?
1. True
2. False
3.
4.
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Question 32 : The ROC of z-transform of any signal cannot contain poles.
1. True
2. False
3.
4.
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Question 33 : If all the poles of H(z) are outside the unit circle, then the system is said to be:
1. Only causal
2. Only BIBO stable
3. BIBO stable and causal
4. None of the mentioned
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Question 34 : A linear time invariant system is characterized by the system function H(z)=1/(1-0.5z^-1 )+2/(1-3z^-1 ).What is the ROC of H(z) if the system is causal?
1. |z|<3
2. |z|>3
3. |z|<0.5
4. |z|>0.5
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