Question:-
Two rectangular waveguides, one air-filled with internal dimensions 2 cm x 1 cm and the other dielectric-filled with internal dimensions 1 cm x 0.5 cm, have the same cutoff frequency for the dominant mode. The relative permittivity of the dielectric material is
Option (A)
2
Option (B)
4
Option(C)
6
Option(D)
8
Correct Option:
(B)
question-answer-faq-2046