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Quiz - LASER (Dr. Wael Mortada)

Create an image of a vivid laser beam cutting through darkness, with vibrant colors like blue, red, and green, showcasing different applications of lasers such as medical, industrial, and scientific fields.

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!

10 Questions2 MinutesCreated by ShiningBeam402

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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