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The term cos θ is given by 2.5. Find the phase velocity.(a) 3(b) 5(c) 7.5(d) 2.5I have been asked this question in quiz.I would like to ask this question from Phase and Group Velocity in division Waveguides of Electromagnetic Theory

Answer» CORRECT CHOICE is (c) 7.5

For EXPLANATION I would say: The phase VELOCITY is given by VP = c cos θ. On substituting for cos θ = 2.5 and the speed of light, we get the phase velocity as 7.5 x 10^8 m/s.


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