A sampled data acquisition system is being used to digitize an audio

signal. Assume the sample frequency F$,$ is $20$ kHz$.$ Determine the

output frequency that will be heard for each of the following input

frequencies.

$($a$)$ Input signal $=5$ kHz

$($b$)$ Input signal $=10\mathrm{.}1$ kHz

$($c$)$ Input signal $=10\mathrm{.}2$ kHz

$($d$)$ Input signal $=15$ kHz

$($e$)$ Input signal $=19\mathrm{.}1$ kHz

$($f$)$ Input signal $=19\mathrm{.}2$ kHz