Ask a Question

In a waveguide, which of the following condition is true always?

in Education by
In a waveguide, which of the following condition is true always? (a) phase velocity = c (b) group velocity = c (c) phase velocity > c (d) phase velocity < c This question was addressed to me during an interview for a job. My doubt stems from Phase and Group Velocity topic in division Waveguides of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

1 Answer

0 votes
by
 
Best answer
Right option is (c) phase velocity > c Explanation: The phase velocity is always greater than the speed of light in waveguides. This implies the group velocity is small.

Related questions

0 votes
Q: In a waveguide, always which condition holds good?
    In a waveguide, always which condition holds good? (a) phase velocity = c (b) phase ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance
0 votes
Q: Choose which of following condition is not required for a waveguide to exist.
    Choose which of following condition is not required for a waveguide to exist. (a) The ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: The condition which will satisfy the dimensions of the waveguide is
    The condition which will satisfy the dimensions of the waveguide is (a) a = b (b) a > ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance
0 votes
Q: The tangential component of electric field intensity is always continuous at the interface. State True/False.
    The tangential component of electric field intensity is always continuous at the interface. State ... by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: In conductors, which condition will be true?
    In conductors, which condition will be true? (a) σ/ωε > 1 (b) σωε > 1 (c) ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance
0 votes
Q: Which of the following identities is always zero for static fields?
    Which of the following identities is always zero for static fields? (a) Grad(Curl V) (b) ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance
0 votes
Q: Identify which is not a type of waveguide.
    Identify which is not a type of waveguide. (a) Rectangular (b) Circular (c) Cylindrical (d ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance
0 votes
Q: The dominant mode in waveguide is the mode which has
    The dominant mode in waveguide is the mode which has (a) Highest frequency (b) Highest ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance
0 votes
Q: The cut off frequency for waveguide operation is
    The cut off frequency for waveguide operation is (a) 2 MHz (b) 6 GHz (c) 4 MHz ( ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance
0 votes
Q: The phenomenon employed in the waveguide operation is
    The phenomenon employed in the waveguide operation is (a) Reflection (b) Refraction (c) Total ... by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance
0 votes
Q: The waveguide is employed in the transmission lines, when operated at the range of
    The waveguide is employed in the transmission lines, when operated at the range of (a) Hz ( ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance
0 votes
Q: The cut off frequency for a waveguide to operate is
    The cut off frequency for a waveguide to operate is (a) 3 MHz (b) 3 GHz (c) 6 ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 6, 2021 in Education by JackTerrance

© Copyright 2018-2023 www.Blogmepost.com. All rights reserved. Developed by Blogmepost.

...