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NEST2015PhysicsThermal Properties of Matter

The intensity of radiation from a human body is maximum around a certain wavelength. A photon of this wavelength can just excite an electron from the valence to the conduction band of a semiconductor used in a night vision device. Assume that the black body radiation law holds for the human body. The band gap of such a semiconductor is close to

Options

  1. A0.1 eV
  2. B0.5 eV
  3. C1.0 eV
  4. D2.0 eV

Correct answer

A. 0.1 eV

Step-by-step solution

No solution available.

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