Semiconductor I Energy Band

For a pure semiconductor energy band shown at 0K choose correct option:

In a semiconductor, the energy gap between the valence and conduction bands is 1. 1 eV. It is expressed in joules as

In a semiconductor energy gap between the impurites level and conduction band is 1 me V is it an n type or p type of semiconductor

Draw the energy band diagram when intrinsic semiconductor (Ge) is doped with impurity atoms of Antimony (Sb). Name the extrinsic semiconductor so obtained and majority charge carriers in it.

" The cut-off wavelength for a photon able to create electron-hole pair in a semiconductor having energy band gap of "1.6eV" is "

in an n-type semiconductor, the donor energy level lies (a) at the center of the energy gap (b) just below the conduction band (c)just above the valence band (d) in the conduction band

In semiconductor the valence band at 0 K is

Statement-1 : When the temperature of a semiconductor is increased, then its resistance decreases. Statement-2 : The energy gap between conduction band and valence band is very small for semiconductor.

Assertion: If the temperature of a semiconductor is increased then its resistance decreases. Reason: The energy gap between conduction band and valence band is very small

Band theory of Conduction | Types of Semiconductors | Temperature and Conductivity