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An audio signal 25sin2pi(1400t) amplitud...

An audio signal `25sin2pi(1400t)` amplitude modulates `80sin2pi(10^(5)t)`. The two side band frequencies are

A

`98.6 kHz`, `101.4 kHz`

B

`92.5 kHz`, `105.5 kHz`

C

`94 kHz`, `102.5 kHz`

D

`96 kHz`, `106 kHz`

Text Solution

Verified by Experts

The correct Answer is:
A
`LSB=f_(c)-f_(m)=10^(5)-1400=98.6khz`
`USB=f_(c)+f_(m)=10^(5)+1400=101.4khz`
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