1.

(A) : In case of frequency modulation, the frequency of the RF carrier is changed by the AF signal and the change is proportional to the amplitude of the AF signal at any instant. (R) : When the AF signal is positive, the carrier frequency increases but it decreases when the AF signal is negative.

Answer»

Both 'A' and 'R' are true and 'R' is the correct EXPLANATION of 'A'.
Both 'A' and 'R' are true and 'R' ISNOT the correct explanation of 'A'.
A' is true ABD 'R' FALSE
A' is false and 'R' is false

Answer :A


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