A semiconductor of Ge can be made p-type...

A semiconductor of `Ge` can be made `p`-type by adding

A

Trivalent impurity

B

Tetravalent impurity

C

Pentavalent impurity

D

Divalent impurity

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The correct Answer is:

A

Ge is Group `14` elements. Positive holes can be created by adding Group `13` element, i.e., trivalent impurity.

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