Chapter 28, Problem 39A

To determine

To explain: The properties of laser lights that led to its use in light shows.

Explanation of Solution

Introduction:

The word laser stands for light amplification by stimulated emission of radiation.

The properties of laser lights that led to its use in light shows are:

1. Laser beams are narrow.
2. Laser beams are highly directional.
3. They do not spread out over long distances
4. They have lights of one wavelength (pure colours)

Conclusion:

Laser lights have many uses due to their unique properties. They are used by scientists, in fiber optics etc.