A silicon specimen is made into a p - type semiconductor by doping on an average, one indium atom per 5 x 107 silicon atoms. If the number density of atoms in the silicon specimen is 5 x 1028 atoms/m3, then the number of acceptor atoms in silicon per cubic centimeter will be

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2.5 x 1030 atoms / cm3

2.5 x 1035 atoms / cm3

1.0 x 1013 atoms / cm3

1.0 x 1015 atoms / cm3

answer is D.

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Detailed Solution

nhcm3=1021106=1015

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