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Questions  >>  CBSE XII  >>  Physics  >>  Communication systems
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Identify the mathematical expression for amplitude modulated wave

$\begin{array}{1 1} A_c \sin \{(w_c +K_1 v_m (t))+\phi\} \\ A_c \sin \{(w_ct +\phi +K_2v_m (t))\} \\ \{A_c+K_2v_m(t) \sin (w_ct +\phi)\} \\ A_c v_m (t)\sin (w_ct+\phi) \end{array} $

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