Multiple choice

The impulse response h (t) of linear time - invariant continuous time system is given by h (t) = exp (- 2t) u (t) , where u (t) denotes the unit step function.

The frequency response H $(\omega)$of this system in terms of angular frequency$(\omega)$, is given by H $(\omega)$ =

  1. $\dfrac{1}{1+j2\omega}$
  2. $\dfrac{sin\omega}{\omega}$
  3. $\dfrac{1}{2+j\omega}$
  4. $\dfrac{j\omega}{2+j\omega}$
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C Correct answer
Explanation

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