LASER
Authored by INDUMATHI B
Physics
University
Used 272+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 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
1 min • 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
1 min • 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
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The coherent nature of light from LASER is due to
Spontaneous emission
Stimulated Emission
Absorption
Pumping
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Light amplification in LASER is achieved by
Population inversion
Stimulated emission
Spontaneous emission
Pumping
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Laser is a coherent source of light. This means all the light waves....
are out of phase
are in phase
have different directions
have same direction
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Laser is a monochromatic source of light. This means all the light waves have...
same wavelength
same phase
same intensity
same direction
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