Identify the polarisation of the wave given, Ex = Exo cos wt and Ey = Eyo sin wt. The phase difference is +90^0.(a) Left hand circularly polarised(b) Right hand circularly polarised(c) Left hand elliptically polarised(d) Right hand elliptically polarisedThe question was posed to me by my college director while I was bunking the class.The above asked question is from Types of Polarization topic in division EM Wave Propagation of Electromagnetic Theory

Identify the polarisation of the wave given, Ex = Exo cos wt and Ey =

1.	Identify the polarisation of the wave given, Ex = Exo cos wt and Ey = Eyo sin wt. The phase difference is +90^0.(a) Left hand circularly polarised(b) Right hand circularly polarised(c) Left hand elliptically polarised(d) Right hand elliptically polarisedThe question was posed to me by my college director while I was bunking the class.The above asked question is from Types of Polarization topic in division EM Wave Propagation of Electromagnetic Theory
Answer» Correct choice is (c) Left HAND elliptically polarised Easiest EXPLANATION: The magnitude of the Ex and Ey components are not same. Thus it is elliptical polarisation. For +90 phase DIFFERENCE, the polarisation is left handed. In other words, the rotation is in CLOCKWISE direction. Thus the polarisation is left hand elliptical.

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