Question

In an amplitude modulation with modulation index 0.5 the ratio of the carrier wave to that of side band in the modulated wave is
A. `4:1`
B. `1:4`
C. `1:3`
D. `2:1`

Answer 1

Correct Answer - A
Here, modulation index `mu=0.5`
Amplitude of the carrier wave `=A_(c)`
Amplitude of the side band `=mu(A_(c))/(2)`
Their ratio `=(2)/(mu)=(2)/(0.5)=(4)/(1)`