TS EAMCET · Physics · Communication System
A message signal of frequency is used to modulate a carrier of frequency . If the side bands produced are and , then is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Frequency of the side bands = Carrier frequency ± Message frequency =νc±15 kHz Therefore, νc+15 kHz=1515 kHz and νc-15 kHz=1485 kHz ⇒νc=1515-15=1500 kHz=1.5 MHz
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