Due to which of the following reasons, the ground wave eventually disappears, as one moves away from the transmitter? - Electromagnetic Field Theory

Electronics and Communication Engineering (ECE) : Electromagnetic Field Theory - Quiz(MCQ)

Due to which of the following reasons, the ground wave eventually disappears, as one moves away from the transmitter?

A)

Tilting

B)

Loss of line-of-eight conditions

C)

Interference from the sky wave

D)

Maximum single hop distance limitation

Correct Answer : Option (A) : Tilting

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Radiation intensity in a given direction is the

A)

Energy radiated per square metre

B)

Power radiated per square metre

C)

Power radiated per unit solid angle in that direction

D)

None of the above

Correct Answer : Power radiated per unit solid angle in that direction

Which of the following impedance inversion is obtained?

A)

Balun transformer

B)

A quarter wave line

C)

Short-circuited stub

D)

A half wave line

Correct Answer : A quarter wave line

The wave in wave guide has

A)

Larger frequency than in the free space

B)

Diminishing wavelength than in the free space

C)

Group velocity inversely proportional to wavelength

D)

Larger wavelength than in the free space

Correct Answer : Larger wavelength than in the free space

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