An air-filled rectangular waveguide has dimensions 8cm x 10cm . The gr – McqOptions

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1.	An air-filled rectangular waveguide has dimensions 8cm x 10cm . The group velocity is
A.	1.8 x 108 m/s
B.	2.6 x 108 m/s
C.	3 x 108 m/s
D.	0.3 x 108 m/s
Answer» C. 3 x 108 m/s

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