In the equation, 20cos⁡(10^8 t + 3 sin⁡10^9 t) the modulation index is ________(a) 1(b) 2(c) 3(d) 4The question was posed to me by my school principal while I was bunking the class.Question is taken from Representation of SSB-SC in Time & Frequency Domain in division SSB Modulation of Analog Communications

In the equation, 20cos⁡(10^8 t + 3 sin⁡10^9 t) the modulation inde

1.	In the equation, 20cos⁡(10^8 t + 3 sin⁡10^9 t) the modulation index is ________(a) 1(b) 2(c) 3(d) 4The question was posed to me by my school principal while I was bunking the class.Question is taken from Representation of SSB-SC in Time & Frequency Domain in division SSB Modulation of Analog Communications
Answer» The correct option is (c) 3 To explain: The general expression for FM is as FOLLOWS: FM (t) = AC sin (2πfct + βsin(2πfmt)), where β is the modulation index. Thus β = 3.

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