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A signal of 5 kHz frequency modulates a ...

A signal of 5 kHz frequency modulates a carrier of frequency 1 MHz and peak voltage 25 V. If the amplitude at the sidebands of the amplitude modulated signal is 5 V, then the modulation index is

A

`0.8`

B

`0.6`

C

`0.5`

D

`0.4`

Text Solution

Verified by Experts

The correct Answer is:
D
Given, amplitude of carrier `A_0 = 25` V
and amplitude of side band `= 5`V
Here, `5V = (mu A_C)/( 2)`
`mu = (5 xx 2)/( 25) = (10)/(25) = 0.4`
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