Chapter 12.3, Problem 19R

To determine

To explain: Application of laser.

Answer to Problem 19R

Lasers are used to read CDs, used in pointers, used in light shows, used in surgery, etc.

Explanation of Solution

Introduction:

Laser produces a very narrow beam of light that travels over long distances without distribution. A laser is produced when electrons in atoms in crystals, gases or glasses (specifically) absorb energy and become excited.

Application of lasers is mentioned below:

• In medical field
• In surveying,
• In welding & cutting,
• In garment industry,
• In Laser nuclear fusion,
• In communication field,
• In laser printing,
• In CD’s and optical discs,
• In spectroscopy,
• In heat treatment,
• In barcode scanner,
• In laser cooling, etc.

Conclusion:

Laser produces narrow, intense beams of light and because of these properties it is used widely.