Question

The electric field of a uniform plane wave is given by
$\overrightarrow{E}=10sin(\omega t-\pi z){\hat{a}}_x+10cos(\omega t-\pi z){\hat{a}}_y\left(V/m\right)$. The polarization of the wave is

• A. Circular
• B. Linear
• C. Elliptical
• D. Undefined

Answer 1

The correct option is A Circular

$|{\overrightarrow{E}}_x|=|{\overrightarrow{E}}_y|,$ and the angle between ${\overrightarrow{E}}_x={\overrightarrow{E}}_{y}is{90}^o$, which means polarization is circular.