43.5 PRACTICE PROBLEMS 1. Lasers are good for marking objects when, a) Markings have complex mixtures of color. b) Cost is important. c) Markings require a long life. d) None of the above.
1. Lasers are good for marking objects when,
a) Markings have complex mixtures of color.
b) Cost is important.
c) Markings require a long life.
d) None of the above.