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A 4 cm by 3 cm rectangular waveguide with air cavity, is operating at 12 GHz with TE11 mode. The cut-off frequency is: | |
A. | 6.25 GHz [Correct Answer] |
B. | 4.75 GHz [Wrong Answer] |
C. | 1.5 GHz [Wrong Answer] |
D. | 8.75 GHz [Wrong Answer] |
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