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Question

Question: A message signal of frequency 10 kHz and peak voltage of 10 V is used to modulate a carrier of frequ...

A message signal of frequency 10 kHz and peak voltage of 10 V is used to modulate a carrier of frequency 1 MHz and peak voltage of 20 V. The frequency of the side bands produced is

A

1000 kHz, 990 kHz

B

1010 kHz, 990 kHz

C

990 kHz, 1000 kHz

D

1010 kHz, 1000 kHz

Answer

1010 kHz, 990 kHz

Explanation

Solution

: The side bands produced are at (100+10)(100 + 10) KHz =1010KHz= 1010KHz and (100010)KHz=990KHz(1000 - 10)KHz = 990KHz