Q. In a TWT the loss in attenuator is

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Q. To study electromagnetic radiations from astronomical objects, radio astronomers use

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Q. Radar reciever has high sensitivity and low noise figure

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Q. For a waveguide, which of the following statements is wrong?

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Q. A circular waveguide has an infinite set of TE and TM modes.

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Q. In TE and TM modes of rectangular waveguides having propagation in z direction

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Q. The manufacturing technique used to manufacture strip type transmission line is

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Q. An electromagnetic wave can be completely guided by a dielectric rod or slab.

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Q. A transmission line discontinuity is defined as any interruption in the uniformity of the line.

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Q. Interference generated by electrical equipment and automobile ignition systems when observed closed to earth is

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Q. The earliest uses of electromagnetic waves were

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Q. At millimeter wavelength the favoured mode in circular wave guide is

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Q. In laboratory experiment the output from reflex klystron is moderated by square wave because

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Q. In microwave detector used in laboratory measurements of relative power levels, standing wave ratio is about

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Q. Microwaves

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Q. In microstrip line has dielectric material most commonly used is

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Q. In fibre optics the use is made of thin glass fibres for efficient transmission of light.

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Q. Fields are said to be circularly polarized if

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Q. Most electromagnetic transmission in rectangular wave-guide uses

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Q. Loading of a line means

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