1.

If a FM signal having modulation index mf is passed through a frequency tripler, then the modulation index of output of frequency tripler is ________

A. m<sub>f</sub>
B. 3m<sub>f</sub>
C. <sup>1</sup> <sub>3</sub> m<sub>f</sub>
D. <sup>1</sup> <sub>9</sub> m<sub>f</sub>
Answer» C. <sup>1</sup> <sub>3</sub> m<sub>f</sub>


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