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Semiconductor Electronic: Material, Devices And Simple Circuits — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits1 Mark
MCQ
A pure semiconductor at absolute zero has :
  • A
    Absence of electrons in the conduction band.
  • B
    All the electrons occupying the valence band.
  • C
    Large $E_g$​ value.
  • ✓
    All of the above.
✓

Answer

Correct option: D.
All of the above.
At absolute zero temperature, in a pure semiconductor, all electrons occupy the valence band and no electrons are present in the conduction band. The forbidden gap energy $E_g$​ is large.

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