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For 100% modulation, power in each sideband is ________ of that of carrier.

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For 100% modulation, power in each sideband is ________ of that of carrier.

(a) 50%

(b) 70%

(c) 60%

(d) 25%

This question was addressed to me in quiz.

My question is from Power Relations in AM Waves topic in section Amplitude Modulation of Analog Communications

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Right answer is (d) 25%

The best I can explain: Modulation index = 1. Power in sidebands may be calculated as

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