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A signal of 5 kHz frequency is amplitude...

A signal of `5 kHz` frequency is amplitude modulated on a carrier wave of frequency`2MHz . The frequency of the resultant signal is /are

A

2 MHz only

B

2005 kHzand 1995 kHz

C

2005 kHz, 2000 kHz and 1995 kHz

D

2000 kHz and 1995 kHz

Text Solution

Verified by Experts

Here, `omega_(m)=5kHz, omega_(c)=2MHz=2000kHz`
frequencies of resultant signal are:
`omega_(m)+omega_(m),omega_(c)-omega_(m)`
`(2000+5)kHz,2000kHz, (2000-5)kHz`
`=2005 kHz, 2000kHz, 1995 kHz`
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