Question

What are the 4 main properties of electromagnetic waves?

Answer 1

Electromagnetic waves:

1. A changing magnetic field causes a changing electric field, and vice versa—the two are inextricably related.
2. Electromagnetic waves are created by changing fields.
3. Electromagnetic waves, unlike mechanical waves, do not require a medium to propagate.
   

Properties of Electromagnetic waves:

The following are the primary qualities of electromagnetic waves:

1. Transverse electromagnetic waves exist in nature, and electric and magnetic fields are proportional to each other.
2. The oscillations of and are perpendicular to each other and are in the same phase
3. Electromagnetic waves do not require a medium to travel.
4. In a vacuum, electromagnetic waves travel at a speed of $3\times {10}^8\mathrm{m}{\sec }^{-1}$.
5. Magnetic electric fields carry the same amount of energy as an electromagnetic wave.