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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