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An audio signal given by e1 = 12 sin 2pi...

An audio signal given by `e_1 = 12 sin 2pi`(2000 t) amplitude modulates a sinusoidal carrier wave `e^2 = 50 sin 2pi` ( 100, I00t). What is the upper side band frequency?

A

a. 101 KHz

B

b. 99 KHz

C

c. 100 KHz

D

d. 102 KHz

Text Solution

Verified by Experts

The correct Answer is:
D
Comparing the two equations with the standard equation `e=A sin 2 pint` , we get `f_m`=2000 Hz = 2 KHz = frequency of the modulating signal and `f_C` = 1,00,000 Hz = 100 KHz = frequency of the carrier wave
`therefore` Upper side band =`f_C+f_m`= 100 + 2 =102 KHz
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