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MHT CET2009PhysicsSemiconductors

In LED visible light is produced by

Options

  1. Agallium phosphide
  2. Bgallium arsenide
  3. Cgermanium phosphide
  4. Dsilicon phosphide

Correct answer

B. gallium arsenide

Step-by-step solution

In materials like gallium arsenide the number of photons of light energy is sufficient to produce quite intense visible light.

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