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Question: Answered & Verified by Expert
In LED visible light is produced by
PhysicsSemiconductorsJEE Main
Options:
  • A gallium phosphide
  • B gallium arsenide
  • C germanium phosphide
  • D silicon phosphide
Solution:
1750 Upvotes Verified Answer
The correct answer is: gallium arsenide
In materials like gallium arsenide the number of photons of light energy is sufficient to produce quite intense visible light.

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