Communication

Communication
Question:-
Option (A)
to attenuate high frequency
Option (B)
to attenuate low frequency
Option (C)
to attenuate midband frequency
Option (D)
None of these
Correct Option:
A
Question:-
Option (A)
Pc
Option (B)
1.5 Pc
Option (C)
2 Pc
Option (D)
2.5 Pc
Correct Option:
B
Question Solution:

Question:-
Option (A)
fLO < fS
Option (B)
fLO > fS
Option (C)
mixer input must be tuned to the frequency higher than signal frequency
Option (D)
local oscillator frequency is normally double the intermediate frequency
Correct Option:
B
Question:-
Option (A)
T = 1/2fm
Option (B)
T = 1/fm
Option (C)
T = 1/5fm
Option (D)
T = 1/10fm
Correct Option:
A