List of top Physics Questions on band theory of solids asked in MHT CET

The band diagrams of three semiconductors p, n and intrinsic are given in the figures (1), (2) and (3). C and V are the conduction and valence bands and \(E_{F}\) is the Fermi level. Figures, from (2),(1) and (3) respectively represent the type of semiconductors as

In semiconductors, at room temperature the

There is no hole current in good conductors because they

In case of semiconductors, the band gap between the valence band and conduction band is

In good conductor, the gap between the valence band and the conduction band is

In semiconductors, at room temperature

In the band structure of n-type semiconductor , the free electrons donated by impurity atoms occupy energy levels in

For intrinsic semiconductor, if \(n_h\) and \(n_e\) represent the number of holes per unit volume and the number of free electrons per unit volume respectively then

In energy band diagram of insulators, a band gap and the conduction band is respectively

Which of the following dopant is added in silicon to obtain n-type semiconductor?

Which of the following dopant is added in silicon to obtain n-type semiconductor?

Which of the following dopant is added in silicon to obtain n-type semiconductor?

By increasing the temperature, the electrical conductivity of a conductor and a semiconductor,

For an intrinsic semiconductor ($n_h$ and $n_e$ are the number of holes per unit volume and number of electrons per unit volume respectively)

When the conductivity of a semiconductor is only due to the breaking of the covalent bonds, the semiconductor is called}

Choose the FALSE statement from the following.

Choose the correct statement. In semiconductors, the valence band and conduction band are

In the case of insulators, a band gap and conduction band is respectively

In semiconductors at room temperature,