question_answer

If a number of sine waves with modulation indices n1, n2, n3 ........ modulate a carrier wave, then total modulation index (n) of the wave is

A)            n1 + n2 .... + 2(n1 + n2.....)

B)            \[\sqrt{{{n}_{1}}-{{n}_{2}}+{{n}_{3}}..........}\]

C)            \[\sqrt{n_{1}^{2}+n_{2}^{2}+n_{3}^{2}.........}\]

D)            None of these