Q. In a rectangular waveguide if operating frequency is greater than cut off frequency then propagation constant is

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Q. Isotropic radiator is one that radiates energy

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Q. Refraction of electromagnetic waves occurs when they

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Q. The impedance inversion may be objected with

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Q. An electromagnetic wave incidents on a perfect insulator at an angle. If the wave is not entirely parallel polarized, then

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Q. Coaxial cables can be used for which frequency?

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Q. An antenna couple is used due to all of the following reasons except

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Q. The advantage of Marconi antenna over the ungrounded antenna is that

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Q. What will be the propagation constant at 10 MHz?

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Q. The reflection coefficient is generally a

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Q. The absorption of radio waves by the atmosphere depends on

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Q. Television receiver antenna is usually

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Q. Half power point directions for broadside is

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Q. What will happen to a bird sitting on a conductor?

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Q. Which one is correct option?

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Q. Short-circuited stubs are preferred to open circuited stubs because the latter are

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Q. The induction field of short current element varies as

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Q. In binomial arrays the elimination of secondary lobes takes place

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Q. Q-factor of a transmission line at resonance is

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Q. In a medium if ε, μ and σ are constant throughout the medium, then it is known as

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