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## Q. 1.1.10

A modulated signals is y(t) =m (t) cos (4000πt) , where the baseband signal m(t) has frequency components less than 5 kHz only. The minimum required rate (in kHz) at which y(t) should be sampled to recover m(t) is _______.

## Verified Solution

The minimum sampling rate is given by Nyquist rate

\begin{aligned}&f_{ s }=2 f_{ m } \\&f_{ s }=2 \times 5 \\&f_{ s }=10 kHz\end{aligned}