Question

Assertion : In a semiconductor diode, the thickness of the depletion layer is not fixed. Reason (R): Thickness of depletion layer in a semiconductor device depends upon many factors such as biasing of the semiconductor.

• A. If both Assertion and Reason (R) are true and Reason (R) is the correct explanation of Assertion .
• B. If both Assertion and Reason (R) are true but Reason (R) is not the correct explanation of Assertion .
• C. If Assertion is true but Reason (R) is false.
• D. If both Assertion and Reason (R) are false.

Hint:

In a semiconductor diode, the depletion region's thickness changes with biasing. Reverse bias increases it, and forward bias decreases it.

Answer 1

The Correct Option is A

Step 1: Analyzing the Assertion. The thickness of the depletion region in a semiconductor diode depends on factors like the applied bias. In reverse bias, the depletion region widens, and in forward bias, it narrows. Therefore, Assertion is true.

Step 2: Analyzing the Reason. The thickness of the depletion layer indeed depends on the biasing of the semiconductor, so Reason (R) is also true and explains Assertion .

Step 3: Conclusion. Thus, the correct answer is if both Assertion and Reason (R) are true and Reason (R) is the correct explanation of Assertion .