13 Questions
What does LASER stand for?
Light Amplification by Stimulated Emission of Radiation
What is the term for the property of laser light that makes it have a single wavelength or color?
Monochromatic
What is the term for the property of laser light that makes it travel in a straight line without diverging?
Collimated
What is the term for the property of laser light that makes it have the same phase or alignment of the peaks and troughs of the waves?
Coherent
What is the advantage of laser light over ordinary light in terms of distance and energy?
Laser light can travel longer distances and concentrate more energy
What is the main function of a laser apparatus?
All of the above
What is the property of laser light that makes it have a very narrow spectrum or bandwidth?
Temporal coherence
What is the effect of spatial and temporal coherence on the quality of the laser beam?
Spatial coherence improves the collimation and focus of the laser beam, while temporal coherence improves the monochromaticity and bandwidth of the laser beam.
What is the process of spontaneous emission in a laser?
The emission of a photon by an excited atom without any external influence
What is the process of stimulated emission in a laser?
The emission of a photon by an excited atom due to the influence of another photon
What is the condition of population inversion in a laser?
The number of atoms in the ground state is less than the number of atoms in the excited state
What happens when electrons transition from an excited state to the ground state?
Photons are emitted
What does it mean when we say that the emitted photons are incoherent?
They are emitted randomly without a fixed phase relationship
Test your knowledge on laser radiation with this quiz. Answer questions about the properties and characteristics of laser light.
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