Quiz - LASER (Dr. Wael Mortada)
Laser Knowledge Quiz
Test your understanding of laser technology with our engaging quiz designed for enthusiasts and students alike. Dive into the world of lasers and discover fascinating facts about their properties, applications, and mechanisms.
- 10 challenging questions
- Multiple choice format
- Learn while you play!
Laser light is produced due to
Interference of light
Spontaneous emission of light
Light amplification by stimulated emission of radiation
Diffraction of light
Which of the following is not a characteristic of LASER?
Monochromatic
Divergent
Coherent
Intense
Which of the following is a unique property of laser?
Divergent
Speed
Wavelength
Coherence
Which of the following is an example of optical pumping?
Ruby laser
Helium-Neon laser
Semiconductor laser
Dye laser
The pumping source in He/Ne laser is
Chemical
Optical
Electrical
Mechanical
Population inversion in laser means
Number of atoms in ground state are more than number of atoms in excited state
Number of atoms in ground state are less than number of atoms in excited state
Number of atoms in ground state is equal to number of atoms in excited state
None
In Laser terminology, “population inversion” requires the existence of at least:
Two electronic energy levels
Three electronic energy levels
Four electronic energy levels
Five electronic energy levels
For production of laser beam, the atomic state of the active (gain) medium must be:
All atoms in ground state
More atoms in ground state than in excited state
More atoms in excited state than in ground state
No atoms in excited state
Which of the following is a non-thermal laser?
LLLT
SLD
LED
All the above
The mean power per unit area of the beam
Total Energy
Power density
Average power
Power
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