1000+ Electromagnetic Field Theory MCQ Questions and Answers Pdf - 3
Question: 11
Radiation from a helical antenna is
(A) elliptically polarized
(B) circularly polarized
(C) partially place polarized
(D) plane polarized
Ans: B
circularly polarized
Question: 12
The phase velocity of waves propagating in a hollow metal waveguide is
(A) greater than the velocity of light in free space
(B) less than the velocity of light in free space
(C) equal to the velocity of light in free space
(D) equal to the group of velocity
Ans: A
greater than the velocity of light in free space
Question: 13
Electromagnetic waves are transverse in nature due to
(A) polarization
(B) interference
(C) reflection
(D) diffraction
Ans: A
polarization
Question: 14
Which one of the following sets of equations is independent in Maxwell’s equation?
(A) the two curl equations combined with the continuity equation
(B) the two curl equation
(C) the two divergence equations
(D) both the curl and divergence equations
Ans: D
both the curl and divergence equations
Question: 15
The phase velocity of waves propagating in a hollow metal waveguide is
(A) equal to the group velocity
(B) equal to the velocity of light in free space
(C) less than the velocity of light in free space
(D) greater than the velocity of light in free space
Ans: D
greater than the velocity of light in free space
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