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.

Question

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. (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

Tardigrade Admin · Accepted Answer

According to law of mass-action ni2=ne nh For p-type semiconductor, number of electrons is less than the number of electrons in a pure silicon semiconductor that is for p-type semiconductor, ne<nh. n-type semiconductor has excess of electrons.

Q. 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.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

According to law of mass-action
$n_{i}^{2} = n_{e} n_{h}$
For $p$ -type semiconductor, number of electrons is less than the number of electrons in a pure silicon semiconductor that is for $p$ -type semiconductor, $n_{e} < n_{h}$ .
$n$ -type semiconductor has excess of electrons.

Q. 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.