Phase velocity of waves propagating in a hollow metal waveguide is – McqOptions

MCQOPTIONS

1.	Phase velocity of waves propagating in a hollow metal waveguide is
A.	greater than the group velocity
B.	less than the velocity of light in free space
C.	equal to the velocity of light in free space
D.	equal to group velocity
Answer» B. less than the velocity of light in free space

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