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1. |
In cylindrical waveguides the attenuation will be minimum, at a frequency which is √3 times the cutoff frequency for the following modes of operations1. TE102. TM113. TM104. TE11Which of the above are correct ? |
A. | 1, 2, 3 and 4 |
B. | 2 and 3 only |
C. | 1 and 2 only |
D. | 3 and 4 only |
Answer» E. | |