Question

If an electromagnetic wave travels in the positive \( x \)-direction, and its electric field oscillates in the \( y \)-direction, what is the polarization of the wave?

• A. Linear polarization along the \( x \)-axis
• B. Elliptical polarization
• C. Circular polarization
• D. Linear polarization along the \( y \)-axis

Hint:

When the electric field oscillates in a fixed direction while the wave propagates in a perpendicular direction, the wave is said to be linearly polarized.

Answer 1

The Correct Option is D

Since the electric field oscillates in the \( y \)-direction while the wave propagates in the \( x \)-direction, the wave is said to be linearly polarized along the \( y \)-axis. Linear polarization occurs when the electric field oscillates along a single direction.