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Modulation Basic Equations

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Find the correct match between group 1 & group 2 Group P. (1+km(t)A sin(\Omega t)) Q. km(t) A sin(\Omega t) R. A sin(\Omega t + k m(t)) S. A sin[\Omega t + k \int (m(t))] Group 2 W. Phase Modulation X.  Frequency Modulation Y. Amplitude Modulation Z. DSB-SC Modulation

(a) P-Y , Q- Z , R- W, S-X
(b) P-Z , Q -Y, R - W, S- X
(c) P- X, Q-W,R-Y,S-Z
(d) none of above



Answer is ( a )
Concept
(1+km(t)A sin(\Omega t)) - Amplitude Modulation
km(t) A sin(\Omega t) -  DSB-SC Modulation

A sin(\Omega t + k m(t)) - Phase Modulation

A sin[\Omega t + k \int (m(t))] - Frequency Modulation

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