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A system has a complex conjugate root pair of multiplicity two or more in its characteristic equation. The impulse response of the system will be
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- a sinusoidal oscillation which decays exponentially; the system is therefore stable.
- a sinusoidal oscillation with time multiplier; the system is therefore unstable.
- a sinusoidal oscillation which rises exponentially with time; the system is therefore unstable.
- a dc term and harmonic oscillation; the system therefore becomes limitingly stable.
Correct Option: B
NA
