A) 2900 kHz
B) 2750 kHz
C) 2250 kHz
D) 2000 kz
Correct Answer: D
Solution :
[d] Amplitude modulated wave consist of three Waves |
are side band frequency |
= 250 kHz |
Left Side Band |
Right Side Band |
One new signal is of 250 Hz |
For this carrier wave should be taken in such a way that. |
LSB, RSB, fc do not overlap with previous frequencies. |
as |
NTA has given answer [a] but answer should be . |
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