A perfect crystal is one in which

i. At absolute zero the entropy of a perfect crystal is zero. This statement corresponds to which law of thermodynamics?

A perfect crystal of silicon is doped with some elements as given in the options. Which of thses options show n-type semiconductors-

A perfect crystal of silicon (fig) is deped with some elements as given in the options , which of these options shows n- type semicondutors ?

A perfect crystal of silicon (fig) is deped with some elements as given in the options , which of these options shows n- type semicondutors ?

A perfect crystal of silicon (fig) is doped with some elements as given in the options , which of these options shows n- type semiconductors ?

A perfect crystal of silicon (fig) is doped with some elements as given in the options , which of these options shows n- type semiconductors ?

A perfect gas is one whose molecules

Which type of crystals contains only one Bravais lattice ?

Which one of the following defects in the crystals lower its density ?