CBSE Class 12 Physics 2023 Delhi Set 1 Paper

Question : 16

Total: 35

Assertion (A): The resistance of an intrinsic semiconductor decreases with increase in its temperature.
Reason (R): The number of conduction electrons as well as hole increase in an intrinsic semiconductor with rise in its temperature.

Both Assertion (A) and Reason (R) are true and (R) is the correct explanation of (A).
Both Assertion (A) and Reason (R) are true and (R) is NOT the correct explanation of (A).
Assertion (A) is true and Reason (R) is false.
Assertion (A) is false and Reason (R) is also false.

Solution: 👈: Video Solution

In semiconductors, as temperature increases, thermally generated electron and hole pair increases and the resistance decreases.
Hence, assertion and reason both are correct and the reason explains the assertion.

Go to Question:

Prev Question

Next Question