engineering recuitment ISRO Scientist Electronics Mock Test Electromagnetic Theory Waveguides and Guided Waves Rectangular Waveguide
An air-filled rectangular waveguide R1 is operating at the frequency 2 GHz and another air-filled rectangular waveguide R2 is operating at 4 GHz. The guide wavelengths of these waveguides at their respective frequencies are equal. If the cut-off frequency of waveguide R1 is 1 GHz, what is the cut-off frequency of the waveguide R2 in GHz?
1
√10
2
√11
3
√12
4
√13