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Which light source operates primarily based on stimulated emission of radiation?

Physics
JAMB 2025

Which light source operates primarily based on stimulated emission of radiation?

  • A. laser
  • B. fluorescent lamp
  • C. led
  • D. incandescent bulb
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Correct Answer: Option A
Explanation

LASER stands for Light Amplification by Stimulated Emission of Radiation. It works when an incoming photon makes an excited electron release another identical photon, producing a coherent, highly focused beam of light.

There is an explanation video available below.

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Explanation Video

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