railway RRB JE (CBT I + CBT II) Mock Test 2024 Electromagnetic Theory Waveguides and Guided Waves Rectangular Waveguide
Two rectangular waveguides have dimensions of 1 cm × 0.5 cm and 1 cm × 0.25 cm respectively. Their respective cutoff frequencies will be
1
15 GHz and 30 GHz
2
15 GHz and 15 GHz
3
30 GHz and 30 GHz
4
30 GHz and 15 GHz