The equation 20sin⁡(10^8 t + 3 sin⁡ 10^9 t) represents which modulation?(a) AM(b) DSB-SC(c) PM(d) FMI had been asked this question in class test.This interesting question is from Carrier Acquistion Techniques in DSB-SC in chapter Double Sideband Suppressed Carrier Modulation of Analog Communications

The equation 20sin⁡(10^8 t + 3 sin⁡ 10^9 t) represents which modul

1.	The equation 20sin⁡(10^8 t + 3 sin⁡ 10^9 t) represents which modulation?(a) AM(b) DSB-SC(c) PM(d) FMI had been asked this question in class test.This interesting question is from Carrier Acquistion Techniques in DSB-SC in chapter Double Sideband Suppressed Carrier Modulation of Analog Communications
Answer» Correct ANSWER is (d) FM To explain I would say: On comparing with the GENERAL equation of each MODULATION, we found that it represents Frequency modulation. FM (t) = Ac sin (2πfct + βsin(2πfmt)), where symbols have their USUAL MEANING.

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