Multiple choice general knowledge science & technology

Once the active medium is excited, the first photons of light are produced by which physical process

  1. Blackbody radiation

  2. Synchrotron radiation

  3. Spontaneous emission

  4. Planck’s oscillation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Spontaneous emission produces the initial photons when excited atoms decay randomly without external stimulation. These seed photons then stimulate further emission through stimulated emission, amplifying the light, the fundamental principle of laser operation.

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