GATE EC 2015 Set 2 — Question 65
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Electromagnetics → Plane Waves → Polarization (Linear, Circular, Elliptical)
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Question
The electric field of a plane wave propagating in a lossless non-magnetic medium is given by the following expressionThe type of the polarization is
Correct answer
(C) Right Hand Elliptical
Solution
1.Analyze the amplitudes:
The amplitudes of the and components are and . Since , the polarization is elliptical.2.Analyze the phase difference:
The phase of the -component lags the -component by .3.Determine the direction of propagation:
The term indicates the wave is propagating in the direction.4.Determine the sense of rotation:
At :- At :
- At :
5.Apply the Right-Hand Rule:
Point your right-hand thumb in the direction of propagation (). Your fingers curl from to . This matches the rotation of the electric field vector. Therefore, it is Right Hand Elliptical polarization.Continue learning with Success Tracker
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