CONCEPT:
- Electromagnetic waves or EM waves (Lightwave): The waves that are formed as a result of vibrations between an electric field and a magnetic field and they are perpendicular to each other and to the direction of the wave is called an electromagnetic wave.
- The accelerating charged particle produces an electromagnetic (EM) wave.
- A charged particle oscillating about an equilibrium position is an accelerating charged particle.
- Electromagnetic waves do not require any matter to propagate from one place to another as it consists of photons.
- Hence they can move in a vacuum
Properties of Lightwaves:
- Not have any charge or we can say that they are neutral.
- Propagate as a transverse wave with both wave and particle nature.
- They move with the velocity the same as that of light i.e 3 × 108 m/s.
- It contains energy and they also contain momentum.
- They can travel in a vacuum also and always travel in a straight line.
EXPLANATION:
- All of the above-given statements are true.
- Light travels in a straight line until its path is obstructed.
- Light has dual nature, that is, it shows both waves as well as particle nature.
- Light is a transverse wave as the particles of lightwave vibrate in a direction perpendicular to the direction of propagation.

