Two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
ASSERTION(A): The electrical conductivity of a semiconductor increases on doping.
REASON: Doping always increases the number of electrons in the semiconductor.
1
Both A and R are true and R is the correct explanation of A
2
Both A and R are true and R is NOT the correct explanation of A
3
A is true but R is false
4
A is false and R is also false