What are electromagnetic waves? Draw their propagation diagram. Show the electric field amplitude and magnetic field amplitude in the propagation diagram.
What are electromagnetic waves? Draw their propagation diagram. Show the electric field amplitude and magnetic field amplitude in the propagation diagram.
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Solution and Explanation
- Electromagnetic Waves: Electromagnetic waves are waves that consist of oscillating electric and magnetic fields that are perpendicular to each other and to the direction of propagation. They do not require a medium and can travel through a vacuum. These waves propagate with the speed of light \( c \) in a vacuum and carry energy and momentum. The electric field and magnetic field amplitudes are mutually perpendicular to each other and to the direction of wave propagation.
In the diagram:
- The electric field amplitude (E) oscillates in a plane.
- The magnetic field amplitude (B) oscillates perpendicular to the electric field.
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