Exercise: Microwave Communication

Questions for: Microwave Communication

In TE10 mode of rectangular waveguide
A:
there is one half sine wave variation along x direction and one along y direction
B:
there is one half sine wave variation along y direction and one along x direction
C:
there is one full sine wave variation along x direction and one along y direction
D:
none of the above
Answer: A
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A line of length slightly less than and short circuited at far end behaves as
A:
inductance L
B:
capacitance C
C:
L and C in series
D:
L and C in parallel
Answer: A
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What is the numerical aperture an optical fiber when critical angle is 30°?
A:
0.5
B:
0.704
C:
0.866
D:
0.2
Answer: A
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A PIN diode can be used
A:
as a shunt mounted switch
B:
as a series mounted switch
C:
both as series or shunt mounted switch
D:
non of the above
Answer: C
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The resistance values of a PIN diode under positive bias and negative bias respectively are about
A:
a few ohms and a kilo ohms
B:
about 100 ohms and 1000 ohms
C:
about 0.1 ohm and 100 ohms
D:
about 1000 ohms and 10000 ohms
Answer: A
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