sine wave of frequency, fm modulates carrier of frequency fc, producin – McqOptions

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1.	sine wave of frequency, fm modulates carrier of frequency fc, producing the same frequency deviation and the same modulation index in both FM and PM. Next if the modulation frequency is doubled, the modulation index in FM relative to that in PM will be:
A.	the same
B.	halved
C.	doubled
D.	quadrupled
Answer» C. doubled

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