Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 11 (Q.No. 7)
7.
The continuous time system with impulse response h(t) 
u(t) is stable, if __________ (n is even).
u(t) is stable, if __________ (n is even).Answer: Option
Explanation:
h(t) =
consider 
ax = x
ax = x2
a = x
For h(t) to be bounded, exponential term should have a negative power.
i.e. e-t will have response as shown.
Hence 
should be < 0
∴ a < 0.
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