1. Tardigrade
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  3. Physics
  4. An n-type and p-type silicon can be obtained by doping pure silicon with:

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Q. An n-type and p-type silicon can be obtained by doping pure silicon with:

EAMCETEAMCET 2000

Solution:

$ n- $ type semiconductor is formed, when pentavalent impurities (such as antimony, arsenic, phosphorous etc.) are added to pure silicon. While $ p- $ type semiconductor is formed, when trivalent impurities. (such as aluminum, boron, indium, gallium etc.) are mixed with pure silicon. Hence, choice is correct.