In a semiconducting material the mobilities of electrons and holes are `mu_(e)` and `mu_(h)` respectively. Which of the following is true?

The density of electron and holes in an intrinsic semiconductor is n_( e) and n_(h) respectively. Which of the following options are true?

Relative permittivity and permeability of a material are in_(r) and mu_(r) , respectively. Which of the following values of these quantities are allowed for a diamagnetic material ?

Which has higher mobility, electron of hole?

Relative permittivity and permeability of a material are epsilon_(r) and mu_(r) respectively which of the following values of these quantities are allowed for a diamagnetic material ?