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Question: Answered & Verified by Expert
Assertion : The number of electrons in a $p$-type silicon semiconductor is less than the number of electrons in a pure silicon semiconductor at room temperature.
Reason : It is due to law of mass action.
PhysicsSemiconductorsAIIMSAIIMS 2005
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion
  • B If both assertion and reason are true but reason is not the correct explanation of assertion
  • C If assertion is true but reason is false
  • D If both assertion and reason are false.
Solution:
2758 Upvotes Verified Answer
The correct answer is: If both assertion and reason are true and reason is the correct explanation of assertion
According to law of mass action, $n_i{ }^2=n_e n_h$ In $p$-type semiconductor $n_h>n_e$

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