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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 2 MHz. The frequencies of the resultant signal is/are :

A

2 MHz only

B

2005 kHz, and 1995 kHz

C

2005 kHz,2000 kHz and 1995 kHz

D

200 kHz and 1995 kHz.

Text Solution

Verified by Experts

The correct Answer is:
C
`f_c=2 MHZ = 200 kHz`.
`:. F_m = 5 ` KHz
Resultant frequencies are :
`f_c,f_m,f_c,f_c-f_m`
`=2005 KHz, 2000,1995 ` KHz.
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