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Unformatted text preview: n 2 /n 1 for which a circularly polarized wave is produced in case of total reflection ? b. What is the incident angle for the wave on the boundary layer, such that for a given ratio n 2 /n 1 and after total reflection the wave is circularly polarized ? 3. A rectangular and hollow copper box has the following dimensions in x, y and z direction: a=2cm, b= 3cm, h=1cm. a. How many electromagnetic modes of wavelength are there in the range (4/5) (8/13) cm ? b. Find the wavelengths. c. Identify the modes by sketches of the E field. d. Approximately how many m odes are there in the range 0.01 0.011 cm ? Recommended practice problem for independent selfstudy: Griffiths problem 9.37 on p. 413...
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 Spring '11
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