Q. When a plane wave is incident normally from dielectric '1' (μ₀, ε1) onto dielectric '2' (μ₀, ε2) the electric field of the transmitted wave is 2 times the electric field of the reflected wave. The ratio ε2/ε1 is

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Q. The electric intensity for free space is given by

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Q. Which of following antenna not produces circular polarisation?

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Q. Purpose of antenna is

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Q. End fire coupler is formed

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Q. Antenna radiation efficiency can be increased by

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Q. Divergence of curl A is

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Q. If reflection coefficient is 1/5, then corresponding VSWR is given by

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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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