GATE EC 2000 Electromagnetics Solution Q 1

GATE EC 2000 Electromagnetics Solution Q 1

A uniform plane wave in air impinges at 450 angle on a lossless dielectric material with dielectric constant εr. The transmitted wave propagation in at 300 direction with respect to the normal. The value of εr is

(a) 1.5

(b) \sqrt1.5

(c) 2

(d) \sqrt2

Ans : c)

Explanation

\frac{\sin\theta_t}{\sin\theta_i}=\sqrt{\frac1{\in_r}}4 \frac{\sin30^0}{\sin45^0}=\frac1{\sqrt{\in_r}} \frac{1/2}{1/\sqrt2}=\frac1{\sqrt{\in_r}} \in_r=2

Become PRO At Electromagnetics Basics With Our 4 Ultimate Visual FREE E-Books On Coordinate Systems & Transformations

GET THEM NOW!

MORE QUESTIONS

Sign up for our Newsletter

Scroll to Top

NAGPUR UNIVERSITY

PUNE UNIVERSITY

MUMBAI UNIVERSITY