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Manipal MET2011PhysicsDual Nature of Matter

A p-type semiconductor has acceptor levels 57 meV above the valence band. The maximum wavelength of light required to create a hole

Options

  1. A57 Å
  2. B57 10⁻³ Å
  3. C217105 Å
  4. D11.61 10⁻³³ Å

Correct answer

C. 217105 Å

Step-by-step solution

E=57 meV =57 10⁻³ eV = 12375 E = 12375 57 10⁻³ aligned & =217.105 10^3 Å & =217105 Å aligned

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