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What is the process where atoms in a laser material are pumped to a higher electronic state, allowing an incoming photon to cause the release of excess energy as coherent photons of the same wavelength?
What is the process where atoms in a laser material are pumped to a higher electronic state, allowing an incoming photon to cause the release of excess energy as coherent photons of the same wavelength?
- Excitation
- Spontaneous emission
- Population inversion (correct)
- Stimulated emission
What is the function of the mirrored chamber in a laser?
What is the function of the mirrored chamber in a laser?
- To cool down the lasing medium
- To conduct electricity
- To absorb energy from the surroundings
- To amplify the light and stimulate the emission of other photons (correct)
What distinguishes the LASER light from incandescent and fluorescent light sources?
What distinguishes the LASER light from incandescent and fluorescent light sources?
- Temperature
- Monochromaticity (correct)
- Brightness
- Flexibility
What is the power supply used to excite the lasing medium in a LASER capable of delivering?
What is the power supply used to excite the lasing medium in a LASER capable of delivering?
Which term refers to the property of LASER light where all the waves travel in straight lines with the same wavelength and are all in phase with one another?
Which term refers to the property of LASER light where all the waves travel in straight lines with the same wavelength and are all in phase with one another?
What is the word LASER an acronym for?
What is the word LASER an acronym for?
What is the lasing medium (gain medium) required for LASER production?
What is the lasing medium (gain medium) required for LASER production?
How is a laser beam different from ordinary light beam?
How is a laser beam different from ordinary light beam?
What are photons in the context of LASER?
What are photons in the context of LASER?
What is the wavelength range for light as mentioned in the text?
What is the wavelength range for light as mentioned in the text?
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