Questions in semiconductor

Select	Question
	The nearest distance between two atoms in case of a bcc lattice is equal to
	What is the net force on a $Cl^–$ placed at the centre of the bcc structure of $CsCl$
	Sodium has body centred packing. If the distance between two nearest atoms is 3.7 Å, then its lattice parameter is
	Which of the following is an amorphous solid
	Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54Å. The value of the lattice constant for this lattice is
	In good conductors of electricity, the type of bonding that exists is
	Bonding in a germanium crystal (semi- conductor) is
	The ionic bond is absent in
	The majority charge carriers in P-type semiconductor are
	A P-type semiconductor can be obtained by adding