MCQ
Indium impurity in germanium makes
  • A
    $N-$ type
  • $P-$ type
  • C
    Insulator
  • D
    Intrinsic

Answer

Correct option: B.
$P-$ type
b
(b)Indium is trivalent, hence on doping with it, the intrinsic semiconductor becomes $P-$ type semiconductor.

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