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A signal wave of frequency 12 kHz is mod...

A signal wave of frequency 12 kHz is modulated with a carrier wave of frequency 2-51 MHz. The upper and lower side band frequencies are respectively.

A

2512 KHz and 2508KHz

B

2522KHz and 2488KHz

C

2502KHz and 2498KHz

D

2522KHz and 2498KHz

Text Solution

Verified by Experts

The correct Answer is:
D
Here,v,=1 2KHz,`v_(c)=2.51MHz=2510KHz`
The upper side band frequency =2510+12=2522 KHz
The lower side band frequency `=2510-12=2498KHz`.
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Knowledge Check

  • A single of 5 kHz frequency is amplitude modulated on a carrier wave of frequency 2 MHz. The frequencies of the resultant signal is/are :-

    A
    2005 kHz,2000 kHz and 1995 kHz
    B
    2000 kHz and 1995 kHz
    C
    2 MHz only
    D
    2005 kHz and 1995 kHz

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    A
    2005 kHz, 200 kHz and 1995 kHz`
    B
    `2000 kHz and 1995 kHz`
    C
    `2 MHz only`
    D
    `2005 Hz and 1995 kHz`

  • A sinusoidal carrier wave of amplitude 80 V and frequency 600 KHz is amplitude modulated by a sinusoid voltage of frequency 30 KHz. What is the ratio of upper and lower side band frequencies ?

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    `20/19`
    B
    `21/19`
    C
    `25/18`
    D
    `23/17`
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