
Laser

Quiz
•
Physics
•
University
•
Hard
HOD Physics
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Naturally occuring process in a LASER is
Stimulated Emission
Absorption
Spontaneous Emission
Population Inversion
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The process in which the electrons in the ground state are vibrated to the excited states by providing extra energy from energy sources is called as
Population Inversion
Spontaneous emission
Stimulated emission
Pumping
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The coherent nature of light from LASER is due to
Spontaneous emission
Stimulated Emission
Absorption
Pumping
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Light amplification in LASER is achieved by
Population inversion
Stimulated emission
Spontaneous emission
Pumping
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Minimum number of energy states required to achieve population inversion is
1
2
3
4
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