GATE ECE 2007 | Question: 47

Question

The $\text{3-dB}$ bandwidth of the low-pass signal $e^{-t} u(t)$, where $u(t)$ is the unit step function, is given by

• A. $\frac{1}{2 \pi} \mathrm{Hz}$
• B. $\frac{1}{2 \pi} \sqrt{\sqrt{2}-1} \mathrm{~Hz}$
• C. $\infty$
• D. $1 \mathrm{~Hz}$