Question

A signal $A\cos \omega t$ is transmitted using ${v_0}\sin {\omega _0}t$ as carrier wave. The correct amplitude modulated (AM) signal is

Accepted Answer

${v_0}\sin {\omega _0}t + \frac{A}{2}\sin \left( {{\omega _0} - \omega } \right)t + \frac{A}{2}\sin \left( {{\omega _0} + \omega } \right)t$

Answer

$\left( {{v_0}\sin {\omega _0}t + A\cos \omega t} \right)$

Answer

$\left( {{v_0} + A} \right)\cos \omega t\sin {\omega _0}t$

Answer

${v_0}\sin \left[ {{\omega _0}\left( {1 + 0.01A\sin \omega t} \right)t} \right]$

JEE PHYSICS MCQ: COMMUNICATION SYSTEMS

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