Q. An open coil has

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Q. Antenna used for direction finding is

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Q. In E plane metal plate lens antenna

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Q. The disturbance from adjacent telephone line is known as

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Q. The boundary conditions at the interface between two dielectrics in an electric field are given by

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Q. Transverse electric (TE) waves have

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Q. For infinite value of SWR on a transmission line, the line be terminated with impedance as

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Q. An electromagnetic wave incident on a perfect conductor is

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Q. A time varying magnetic field produces

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Q. Surface integral of the electric field intensity is

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Q. The essential condition for antenna array to be linear is that

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Q. Directivity gain depends on

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Q. The fluctuation in the received signal strength at the receiver of a random variation in the received signal is known as

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Q. The secondary lobes in binomial arrays can be reduced by

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Q. Which of the following statement is incorrect?

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Q. The maximum effective aperture of a microwave antenna which has a directivity of 900, will be

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Q. For a wave propagating in air filled rectangular waveguide.

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Q. Which of following antenna produces elliptical polarisation?

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Q. The troposphere extends from earth surface to a height of

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Q. Antenna reciprocity is put to use in

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