GK
TECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Once the active medium is excited, the first photons of light are produced by which physical process?
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Blackbody radiation
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Spontaneous emission
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Synchrotron radiation
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Planck’s oscillation
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Explanation:
Detailed explanation-1: -Spontaneous emission is what you see with most “glow in the dark” toys. You excite the toy by exposing it to bright light, then the toy glows in the dark by spontaneously emitting photons as the excited atoms relax back down to their normal state.
Detailed explanation-2: -Light Amplification by Stimulated Emission of Radiation (laser) is a coherent, convergent, and monochromatic beam of electromagnetic radiation.
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