Solid State Tes...

Percentage of free space in a body centre cubic unit cell is:

The contribution of particle at the edge centre to a particular unit cell is :

The unit cell with crystallographic dimensions, $$a\ne b\ne c$$, $$\alpha=\gamma=90$$ and $$\beta\ne 90$$ is called :

In body-centred cubic structure, the space occupied is about :

P-type semi-conductors are made by mixing silicon with impurities of:

The smallest repeating unit in space lattice which when repeated over and again results in the crystal of the given substance is called:

To prepare n-type semiconductor the impurity to be added to silicon should have the following number of valence electrons:

$$ZnS$$ can be existing in the ________ structure other than zing blende structure.

Formula of unit cell density is:

Crystal structure of $$NaCl$$: