Question: A third order system is approximated to an equivalent second order system. The rise time of the lower order system will be (a) same as

A third order system is approximated to an equivalent second order system. The rise time of the lower order system will be

(a) same as that of original system for any input.

(b) smaller than that of original system for any input.

(c) larger than that of original system for any input.

(d) larger or smaller depending on input.

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