laser
Authored by Hareesh r
Physics
University
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5 questions
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1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
what is the unit of wavelength
kilogram
nanometer
volts
henry
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
what is the principle of laser action
spontaneous absorption
spontaneous emission
population inversion
none of these
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Acronym for LASER is
Light Absorption by Stimulated Emission of Radiation
Light Amplification by Stimulated Emission of Radiation
Light Alteration by Stimulated Emission of Radiation
Light Attenuation by Stimulated Emission of Radiation
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Which of the following statements are true?
- LASER is used as optical source in single mode fibers.
- LASER lights are highly incoherent.
1. is true and 2. is false
1. is false and 2. is true
Both 1 & 2 are true
Both 1 & 2 are false
5.
MULTIPLE CHOICE QUESTION
5 sec • 5 pts
Naturally occuring process in a LASER is
Stimulated Emission
Absorption
Spontaneous Emission
Population Inversion
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