Question:
A signal Acos\omegat is transmitted using $v_{0} \sin \omega$ modulated (AM) signal is:
Correct Option: 1
Solution:
(1) The equation of amplitude modulated wave
$\mathrm{m}=\left(v_{0}+\mathrm{A} \cos \omega \mathrm{t}\right) \sin \omega \mathrm{t}$
$=v_{0} \sin \omega_{0} \mathrm{t}+\mathrm{A} \cos \omega \mathrm{t} \sin \omega_{0} \mathrm{t}$
$=v_{0} \sin \omega_{0} \mathrm{t}+\frac{\mathrm{A}}{2}\left[\sin \left(\omega_{0}-\omega\right) \mathrm{t}+\sin \left(\omega_{0}+\omega\right) \mathrm{t}\right]$
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