If the electric field of a plane wave is\(\vec E\left( {z,\;t} \right) = \hat x\;3\cos \left( {\omega t - kz + 30^\circ } \right) - \hat y4\sin \left( {\omega t - kz + 45^\circ } \right)\left( {mV/m} \right)\)The polarization state of the plane wave is

If the electric field of a plane wave is\(\vec E\left( {z,\;t} \right)

1.	If the electric field of a plane wave is\(\vec E\left( {z,\;t} \right) = \hat x\;3\cos \left( {\omega t - kz + 30^\circ } \right) - \hat y4\sin \left( {\omega t - kz + 45^\circ } \right)\left( {mV/m} \right)\)The polarization state of the plane wave is
A.	left elliptical
B.	left circular
C.	right elliptical
D.	right circular
Answer» B. left circular

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If the electric field of a plane wave is\(\vec E\left( {z,\;t} \right) = \hat x\;3\cos \left( {\omega t - kz + 30^\circ } \right) - \hat y4\sin \left( {\omega t - kz + 45^\circ } \right)\left( {mV/m} \right)\)The polarization state of the plane wave is

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