If multiple waves with modulation indices $n_1, n_2, n_3, ...$ modulate a carrier wave,what is the total modulation index of the resulting wave?
- A$n_1 + n_2 + ... + 2(n_1 + n_2 + ...)$
- B$\sqrt{n_1 - n_2 + n_3 - ...}$
- C$\sqrt{n_1^2 + n_2^2 + n_3^2 + ...}$
- DNone of these
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