The magnetic field of an EM wave travelling in free space is given by-E-5cos - t- z-x-5sin - t- z-180- -y A-m The wave is

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Circular Polarization

The magnetic ...

Question

The magnetic field of an EM wave travelling in free space is given by,
$\to E = 5 cos (ω t + β z) {^a}_{x} - 5 sin (ω t + β z + 180^{\circ}) {^a}_{y} A / m$
The wave is

ellipically polarized

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circularly polarized

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none of these

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linearly polarized

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T h e m a g n e t i c f i e l d c o m p o n e n t o f a w a v e i n f r e e s p a c e i s g i v e n b y \to H = 5 s i n (2 \times 10^{8} t + π z)_{y} A / M

E =_{x} s i n (ω t - β z) +_{y} s i n (ω t - β z + π / 2)

\to H

\to H =^x \frac{5 \sqrt{3}}{η_{0}} c o s (ω t - β z) +^y \frac{5}{η_{0}} s i n (ω t - β z + \frac{π}{2})

\to E = (2 {^a}_{x} + j {^a}_{y}) e^{- (β z - j ω t)} V / m

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