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Wave Optics

Question
CBSEENPH12038864

The electrical conductivity of semiconductor increases when electromagnetic radiation of wavelength shorter than 2800 nm is incident on it. The band gap in (eV) for the semiconductor is
  • 0.7 eV

  • 0.5 eV

  • 2.5 eV

  • 1.2 eV

Solution

B.

0.5 eV

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