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When a material from Group 14 like Ge is doped with an element from Group 13 such as In, what type of semiconductor is formed?

1. a) Introducing a Group 13 impurity creates a semiconductor with fewer electrons.
2. b) Ge is a Group 14 element, while In belongs to Group 13.
3. c) As a result of doping, a p-type semiconductor is formed.
4. d) None of these statements are accurate.

Correct answer: c) As a result of doping, a p-type semiconductor is formed.

Solution

The statement 'Hence, on doping, p-type semiconductor is obtained' logically follows from the given information about Ge (Group 14) and In (Group 13).

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