A silicon specimen is made into a p-type semiconductor by doping. On an average, one indium atom per `5xx10^(7)` silicon atoms. If the number density of atoms in the silicon specimen is `5xx10^(28) atm//m^(3)`, then the number of acceptor atoms in silicon per cubic centimeter will be

Explanation

The doping of one indium atoms in silicon semiconductor will rpoduce on eaceeptor atom in p-type semiconductor. Since one indium atom has been dopped per `5xx10^(7)` silicon atoms so number density of acceptor atoms in silicon `=(5xx10^(28))/(5xx10^(7))=10^(21) "atom"//m^(3)=10^(15) "atoms"//cm^(3)`