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

Identify the incorrect statement from the following.

A
AM detection is carried out using a rectifier and an envelope detector.
B
Pulse position denotes the time of rise or fall of the pulse amplitude.
C
Modulation index µ is kept 1, to avoid distortion.
D
Facsimile (FAX) scans the contents of the document to create electronic signals.

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The correct answer is:
C

: Modulation index is kept 1 to avoid distortion

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