Q. If a number of sine waves with modulation indices $n_{1},n_{2},\ n_{3}$….. modulate is carrier wave, then total modulation index $(n)$ of the wave is
A) $n_{1} + n_{2}\ldots + 2(n_{1} + n_{2}\ldots)$
B) $\sqrt{n_{1} - n_{2} + n_{3}\ldots\ldots}$
C) $\sqrt{n_{1}^{2} + n_{2}^{2} + n_{3}^{2}\ldots\ldots}$
D) None of these
Explanation
The correct answer is Option C: $\sqrt{n_{1}^{2} + n_{2}^{2} + n_{3}^{2}\ldots\ldots}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.