LASER TECHNICIAN EXAM STUDY GUIDE
2026 COMPLETE QUESTIONS AND
SOLUTIONS GRADED A+
⩥ this type of laser is used on soft tissue only. Answer: argon (diode)
⩥ this type of laser is used on all tissues. Answer: erbium
⩥ variables affecting the outcome of laser interaction. Answer:
wavelength
target composition
energy transfer
power
interaction time
spot size
⩥ basic functions of a laser. Answer: ablate
decontaminate
stimulate
⩥ the ___ of a laser affects its function. Answer: wavelength
,⩥ characteristics of light. Answer: travels in a straight lines
travels in waves
carries energy
gives off multiple light rays
⩥ LASER. Answer: light amplification by stimulated emission of
radiation
⩥ Frequency. Answer: the number of complete wavelengths that pass a
point in a given time
⩥ frequency is measured in. Answer: Hertz
⩥ how does amplitude affect frequency?. Answer: the higher the
amplitude, the higher the frequency
⩥ diode laser position on electromagnetic spectrum. Answer: low
infrared
⩥ CO2 laser position on electromagnetic spectrum. Answer: far infrared
⩥ erbium laser position on electromagnetic spectrum. Answer: mid
infrared
, ⩥ all colors focused together produce. Answer: white light
⩥ what creates the color of the laser?. Answer: the active medium
⩥ active medium. Answer: the source of atoms that undergo excitation
in a laser; can be a gas (CO2, argon), crystal (erbium, YAG, Nd), or
semiconductor (diode)
⩥ cones in the eye are responsible for seeing. Answer: color
⩥ rods in the eye are responsible for. Answer: night vision, low light
⩥ the amount of light produced depends on. Answer: the temperature of
the source
⩥ white light. Answer: multiple wavelengths
travels in multiple directions
incoherent
⩥ laser light. Answer: single wavelength
monochromatic
travels in 1 direction
2026 COMPLETE QUESTIONS AND
SOLUTIONS GRADED A+
⩥ this type of laser is used on soft tissue only. Answer: argon (diode)
⩥ this type of laser is used on all tissues. Answer: erbium
⩥ variables affecting the outcome of laser interaction. Answer:
wavelength
target composition
energy transfer
power
interaction time
spot size
⩥ basic functions of a laser. Answer: ablate
decontaminate
stimulate
⩥ the ___ of a laser affects its function. Answer: wavelength
,⩥ characteristics of light. Answer: travels in a straight lines
travels in waves
carries energy
gives off multiple light rays
⩥ LASER. Answer: light amplification by stimulated emission of
radiation
⩥ Frequency. Answer: the number of complete wavelengths that pass a
point in a given time
⩥ frequency is measured in. Answer: Hertz
⩥ how does amplitude affect frequency?. Answer: the higher the
amplitude, the higher the frequency
⩥ diode laser position on electromagnetic spectrum. Answer: low
infrared
⩥ CO2 laser position on electromagnetic spectrum. Answer: far infrared
⩥ erbium laser position on electromagnetic spectrum. Answer: mid
infrared
, ⩥ all colors focused together produce. Answer: white light
⩥ what creates the color of the laser?. Answer: the active medium
⩥ active medium. Answer: the source of atoms that undergo excitation
in a laser; can be a gas (CO2, argon), crystal (erbium, YAG, Nd), or
semiconductor (diode)
⩥ cones in the eye are responsible for seeing. Answer: color
⩥ rods in the eye are responsible for. Answer: night vision, low light
⩥ the amount of light produced depends on. Answer: the temperature of
the source
⩥ white light. Answer: multiple wavelengths
travels in multiple directions
incoherent
⩥ laser light. Answer: single wavelength
monochromatic
travels in 1 direction
