Question

A modulating signal is a square wave as shown in figure.

The carrier wave is given by
`c(t)=2 sin(8pit)"volt"`.
The modulation index is
A. 0.2
B. 0.3
C. 0.4
D. 0.5

Answer 1

Correct Answer - D
Here, `A_(m)=1V,A_(c)=2V`,
Modulation index, `mu=(A_(m))/(A_(c))=(1)/(2)=0.5`