Q. Which of the following waves do not exist in waveguides?

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Q. The bidirectional pattern of a broadside array can be converted into unidirectional by

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Q. VLF waves are used for communication system because

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Q. The value of susceptibility in case of vacuum is taken as

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Q. Self impedance is

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Q. Equipotential surfaces about a point charge are in which one of the following forms?

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Q. __________ will have the least value of relative permeability.

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Q. A conductor is said to be perfect if it has __________ conductivity

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Q. The simplest standing wave is due to the value of reflection co-efficient is

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Q. In terrestrial microwave links, the number of 'fades' per unit increases as

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Q. Bandwidth of an antenna is related with where Q is quality factor

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Q. When a plane wave travelling in free space is incident normally on a medium having εr = 4.0, then fraction of power transmitted into the medium is given by

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Q. For broadside array, maxima will be obtain at

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Q. Surface impedance at high frequencies is a consideration for

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Q. The unit of displacement density is

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Q. Dish antennas are

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Q. Long distance short-wave radio broadcasting uses

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Q. The affect of ground on radiation pattern is to

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Q. If a electromagnetic signal is incident at 0° in a waveguide then at other port of waveguide we will get

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Q. An antenna having a high Q has

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