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Question

In a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range of 100 - 5000 Hz.
The maximum and minimum frequencies of upper side band (USB) are (in kHz) respectively
  1. 999.9 and 995
  2. 1000 and 999.9
  3. 1005 and 995
  4. 1005 and 1001

A
1005 and 995
B
999.9 and 995
C
1005 and 1001
D
1000 and 999.9
Solution
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