railway RRB JE (CBT I + CBT II) Mock Test 2024 Electromagnetic Theory Waveguides and Guided Waves Rectangular Waveguide
An air-filled rectangular waveguide with dimensions a = 75 mm, b = 37.5 mm has the same guide wavelength at frequencies f1 and f2 when operated at TE10 and TE20 modes respectively. If the frequency f1 is √13 GHz, what is frequency f2 in GHz?
1
10
2
5
3
√13/2
4
2√13