Practice Test: Try to answer all questions, Negative mark for wrong answers ! careful about it and end of the test you can get the certificate. Thank you and Good luck
Unequally
Equally
A and B
None
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Area
Length
Volume
Width
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Folded Dipole
Reflector
Director
All above
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X-direction
XY-direction
Y-direction
None
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292 Ohms
492 Ohms
592 Ohms
692 Ohms
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14.45
15.54
17.52
18.22
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Frequency
Directivity
Amplitude
Loss of transmission line
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Unity
Zero
Infinite
None
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360
180
(180/π)2
All
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Higher purity than multimode step index fibers.
Lower purity than multimode step index fibers.
No purity than multimode step index fibers.
None
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Flat region
Curved region
Flat, curved region
None
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0.517 m
1.517 m
517 m
51.7 m
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100 to 300 μm
10 to 30 μm
1 to 3 μm
10 to 300 μm
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Photons to electrons
Electrons to photons
Electrons to electrons
Both a and b
Both a and c
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Virtual Resistance
Original Resistance
Physical Resistance
None
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5 km
15 km
50 km
500 km
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X-direction.
Y-direction.
Z-direction.
XYZ-direction.
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Better than multimode graded index fibers.
Better than step mode step index fibers.
Not Better than multimode step index fibers.
Better than multimode step index fibers.
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Step index
Multi step index
Graded index
Step and graded index
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