281.
Chemical lasers use...............to produce their beams
A
Excessive amounts of electrical power
B
Small amounts of electrical power
C
No electrical power
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Chemical lasers use...............to produce their beams
Excessive amounts of electrical power
Small amounts of electrical power
No electrical power
Laser energy is used to break up kidney or gallstones in process called?
Trbecularplasty
Lithotripsy
Viscocanalostomy
Most lasers are electrically inefficient devices
True Statement
False Statement
The Eximer laser produces light with what wavelength?
Visible
Ultraviolet
Infrared
The National Ignition Facility will use what type of laser for fusion power experimentation?
Neodymium-glass
Argon gas
Rhodamine Dye
What determines the color of light?
its intensity
its wavelength
its source
What does the acronym LASER stand for?
Light Absorption by Stimulated Emission of Radiation
Light Amplification by Stimulated Emission of Radiation
Light Alteration by Stimulated Emission of Radiation
What does the acronym MASER stand for?
Microwave Amplification by Stimulated Emission of Radiation
Molecular Absorption by Stimulated Emission of Radiation
The name of Albert Einsteins dog
What is one way to describe a Photon?
Solid as a rock
A wave packet
A torpedo
What is the type of laser used most widely in industrial materials processing applications?
Dye Laser
YAG laser
Ruby Laser
Carbon Dioxide Laser
What property of laser light is used to measure strain in roadways?
Intensity
Power
Coherence
What type of laser could cause skin cancer if not used properly?
Red semiconductor laser
Blue semiconductor
Eximer laser
YAG laser
What type of laser is used in CD and DVD players?
Semiconductor
YAG
Alexandrite
Which color of light has the shortest wavelength ?
Yellow
Blue
Red
Green
Which laser is considered eye safe?
Laser bar-code scanners
The eximer laser
Communications lasers
Which scientist first came up with the idea of stimulated emission ?
Alexander Graham Bell
Isaac Newton
Arthur Schalow
Albert Einstein
Why are lasers used for cutting materials
It never gets dull
It has a small heat affected zone
Accuracy
All of the above
Why are lasers used in fiber optic communications systems
The government has mandated it
They can be pulsed with high speed data
They are very inexpensive
Why are lasers used in Laser Printers
They can be focused down to very small spot sizes for high resolution
They are cheap
They are impossible to damage
Coherent light of a single frequency passes through a double slit with a separation d, to produce a pattern on a screen as distance D from the slits. What would cause the separation between adjacent minima on the screen to increase?
increase the index of refraction of the medium in which the setup is immersed
increase the separation d between the slits
increase the distance
increase the frequency of the incident light