ISRO Electronics & Communication (ECE) 2010 - Question 5

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Topic: Electronics Engineering

The function $f(t)$ has the Fourier transform $g(\omega)$. The Fourier transform of $g(t)$ is

  • A. $f(\omega)/2\pi$
  • B. $f(-\omega)/2\pi$
  • C. $2\pi f(-\omega)$
  • D. None of these

Answer: C. $2\pi f(-\omega)$

Explanation: $f(t)\leftarrow\frac{F.T.}\rightarrow g(\omega)$
$g(t)\leftarrow\frac{F.T.}\rightarrow2\pi f(-\omega)$

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