Physics Communication System ( Not In Syllabus ) Modulation, Modulation Index and Demodulation MCQ (Single Correct)

If f a and f f represent the carrier wave frequencies for amplitude and frequency modulations respectively, then

A
B
C
D

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The correct answer is:
B

Here, and represent the carrier frequencies used in Amplitude Modulation (AM) and Frequency Modulation (FM) respectively.

AM broadcasting typically uses carrier frequencies in the range of to kHz.

FM broadcasting typically uses carrier frequencies in the range of 88 MHz to 108 MHz.

Since FM carrier frequencies are much higher than AM carrier frequencies,

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