What is the wavelength value of CO2 laser used in Laser beam machining?
(a) 0.16 μm
(b) 1.6 μm
(c) 10.6 μm
(d) 106 μm
The question was asked by my college professor while I was bunking the class.
This interesting question is from Laser Beam Machining-Introduction topic in section Thermal Processes of Advanced Machining