NEET Physics Semiconductor Electronics Questions Solved

A silicon speciman is made into a P-type semi-conductor by dopping, on an average, one Indium atom per 5×107 silicon atoms. If the number density of atoms in the silicon specimen is 5×1028 atoms/m3 then the number of acceptor atoms in silicon per cubic centimetre will be

(a) 2.5×1030 atoms/cm3                   (b) 1.0×1013 atoms/cm3
(c) 1.0×1015 atoms/cm3                   (d) 2.5×1036 atoms/cm3

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