Question

A wave is modulated by two sin waves having modulation indices of 0.3 and 0.5. Find the total modulation index?

(a) 0.1

(b) 0.7

(c) 0.58

(d) 0.35

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Answer 1

Correct option is (c) 0.58

The explanation is: Given that m1 = 0.3 and m2 = 0.5. Total modulation index will be equal to . By substituting values we have which is equal to 0.58.