Modulation index of a AM wave is measured using oscilloscope. The disp – McqOptions

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1.	Modulation index of a AM wave is measured using oscilloscope. The display on the CRO is as shown in figure it can be concluded that
A.	the output wave is distorted
B.	the output wave is under modulated
C.	the modulation index is 100%
D.	the modulation index is 50%
Answer» B. the output wave is under modulated

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