Multiple Choice
The early lasers all used ____ as the material that produced the laser light.
A) tungsten gas
B) a synthetic crystal rod
C) argon gas
D) a synthetic ruby rod
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q7: When using water jet cutting, _ is
Q7: The carbon arc cutting process was developed
Q9: Which of the following is a difference
Q10: Compare nonreactive gases and exothermic gases.
Q10: What is the term for the process
Q16: Most laser drilling operations use a _
Q20: The power density of a cutting laser
Q21: The power of most lasers is _
Q34: Most laser welding and cutting operations use
Q40: A laser is a form of light