If the unit step response of a network is (1 - e-at), then its unit impulse response is
`alpha e^(-at)`
`alpha^(-3) e^(-at)`
`(1 - alpha^(-1))e^(-at)`
`(1 - alpha)e^(-at)`
38) If the unit step response of a network is (1 - e-at), then its unit impulse response is, 2011
A. alpha e^(-at) (Correct Answer)
B. alpha^(-3) e^(-at)
C. (1 - alpha^(-1))e^(-at)
D. (1 - alpha)e^(-at)