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WorksheetsCO2 LASER
Total questions: 10
Worksheet time: 4mins
CO2 laser is a type of
Solid Laser
Liquid Laser
Molecular Gas Laser
Semiconductor Laser
Pumping technique employed in gas laser is
Optical pumping
Electrical Discharge Method
Direct conversion
Chemical reaction
In gas lasers the output power is directly proportional to
Diameter of quartz tube
Brewster window
Concave mirrors
Length of the discharge tube
CO2 laser is a
four level laser
three level laser
two level laser
none of these
CO2 laser produces a light of the range of wavelength
50 μ m -24.8 μ m
10.6 μ m and 9.6 μ m
50 μ m and 20 μ m
10 nm and 50 nm
Power output of CO2 laser is
10 kW
10 W
10 microwatt
1 W
In which laser transition takes place between the different vibrational states of the molecule?
Ruby laser
Carbon di oxide laser
Nd-YAG laser
Semiconductor laser
In CO2 LASER which mode of vibration, the oxygen atoms and carbon atom vibrate perpendicular to molecular axis?
Symmetric stretching mode
Asymmetric stretching mode
Bending mode
NONE
What is the use of He gas in CO2 laser?
to increase the population of atoms in the upper
level of CO2
to depopulate the atoms in the lower level of CO2
to depopulate the atoms in the lower level of CO2
and also to cool the discharge tube
to increase power output
Which acts as active center in CO2 laser?
N2
He
CO2
Ne
