1. A standard waveguide W R90 has inside wall dimensions of a = 2.286 cm and b = 1.016 cm. What is the cut-off wavelength for TE01 mode?





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MCQ->A standard waveguide W R90 has inside wall dimensions of a = 2.286 cm and b = 1.016 cm. What is the cut-off wavelength for TE01 mode?....
MCQ-> Study the following information carefully and answer the questions given below : Eight friends - R, S, T, U, V, W. X and Y - are sitting around a circular table facing the centre, but not necessarily in the same order. Each of the them studies in the different Standards viz, Standard I to Standard VIII, but not necessarily in the same order. T is second to the right of the person who studies in Standard VII. Only one person sits between T and the person who studies in Standard V. X is sitting third to the left of the person who studies in Standard VIII. The person studying in Standard VIII is not an immediate neighbour of the person studying in Standard VII. T does not study in Standard VIII. The person studying in Standard VI is to the left of U. U does not study in Standard V or Standard VIII. The persons studying in Standard VI and VII are immediate neighbours of each other. One of the immediate neighbours of the person studying in Standard VIII, studies in Standard II. S and Y are immediate neighbours of each other. There is one person between S and R. V does not study in Standard I. R studies in Standard V. Y does not study in Standard II. W is sitting between the persons who study in Standard VII and Standard IV. X is second to the right of the person studying in Standard I.Who among the following is sitting third to the right of T.
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MCQ->Assertion (A): In rectangular waveguide TE01 mode is just TE10 mode rotated by 90°.Reason (R): When a rectangular waveguide is rotated by 90°, the broad and narrow dimensions get interchanged.

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MCQ->Assertion (A): In circular waveguide the attenuation of TE01 mode decreases as the operating frequency increases.Reason (R): The wall currents in a circular waveguide in TEQ1 mode are completely circumferential.

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