Laser Multiple Choice Questions and Answers

1. Why are lasers used in Laser Printers

1. They can be focused down to very small spot sizes for high resolution
2. They are cheap
3. They are impossible to damage

2. Why are lasers used in fiber optic communications systems

1. The government has mandated it
2. They can be pulsed with high speed data
3. They are very inexpensive

3. Why are lasers used for cutting materials

1. It never gets dull
2. It has a small heat affected zone
3. Accuracy
4. All of the above

4. Which scientist first came up with the idea of stimulated emission ?

1. Alexander Graham Bell
2. Isaac Newton
3. Arthur Schalow
4. Albert Einstein

5. Which laser is considered eye safe?

1. Laser bar-code scanners
2. The eximer laser
3. Communications lasers

6. Which color of light has the shortest wavelength ?

1. Yellow
2. Blue
3. Red
4. Green

7. What type of laser is used in CD and DVD players?

1. Semiconductor
2. YAG
3. Alexandrite

8. What type of laser could cause skin cancer if not used properly?

1. Red semiconductor laser
2. Blue semiconductor
3. Eximer laser
4. YAG laser

9. What property of laser light is used to measure strain in roadways?

1. Intensity
2. Power
3. Coherence

10. What is the type of laser used most widely in industrial materials processing applications?

1. Dye Laser
2. YAG laser
3. Ruby Laser
4. Carbon Dioxide Laser