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Microwave Communication
Microwave Communication
Exercise: Microwave Communication
📂 Microwave Communication
✅
Questions for: Microwave Communication
Radar reciever has high sensitivity and low noise figure
A:
True
B:
False
C:
D:
Answer:
A
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To study electromagnetic radiations from astronomical objects, radio astronomers use
A:
low frequencies
B:
medium frequencies
C:
microwaves
D:
either (
a
) or (
b
)
Answer:
C
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In a TWT the loss in attenuator is
A:
almost equal to forward gain of tube
B:
much less than forward gain of tube
C:
much higher than forward gain of tube
D:
almost infinite
Answer:
A
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Which mode is called dominant mode in rectangular wave guide?
A:
TE
01
B:
TE
11
C:
TE
10
D:
TE
20
Answer:
C
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Fields are said to be circularly polarized if
A:
their magnitudes are equal
B:
their magnitudes are equal and they differ in phase by ± 90°
C:
their magnitudes are unequal and they differ in phase ± 90°
D:
their magnitudes are unequal and they are in phase
Answer:
B
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