A carrier is simultaneously modulated by two sine waves with modulation indices of 0.3 and 0.4 ; then the…
A carrier is simultaneously modulated by two sine waves with modulation indices of 0.3 and 0.4 ; then the total modulation index is
- $1$
- $0.12$
- $0.5$
- $0.7$
Solution
$\mu_1=0.3, \mu_2=0.4$
$\therefore$ Total modulation index,
$\mu=\sqrt{\mu_1^2+\mu_2^2}=\sqrt{(0.3)^2+(0.4)^2}=0.5$
Asked in: AP EAMCET 2024 (20 May Shift 1)
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