Question

Match List-I with List-II 

List-I	Concept	List-II	Characteristic / Application
A	Avalanche Breakdown	IV	Very lightly doped regions
B	Zener Breakdown	III	Dominant in heavily doped regions
C	Point Contact diode	II	Microwave applications
D	LED Diode	I	GaAsP

• A. A-IV, B-III, C-II, D-I
• B. A-I, B-II, C-III, D-IV
• C. A-II, B-I, C-IV, D-III
• D. A-II, B-I, C-III, D-IV

Hint:

Zener breakdown occurs in heavily doped junctions, while avalanche breakdown occurs in lightly doped junctions.

Answer 1

The Correct Option is A

Concept:
Different semiconductor devices and breakdown mechanisms are associated with different physical conditions and applications.

Step 1: Avalanche Breakdown.
Avalanche breakdown occurs mainly in lightly doped regions because the depletion layer is wide. \[ A\rightarrow IV \]

Step 2: Zener Breakdown.
Zener breakdown is dominant in heavily doped regions because the depletion layer is very thin. \[ B\rightarrow III \]

Step 3: Point Contact diode.
Point contact diode is used in high-frequency and microwave applications. \[ C\rightarrow II \]

Step 4: LED Diode.
LEDs can be made using materials like GaAsP. \[ D\rightarrow I \] Therefore: \[ A-IV,\ B-III,\ C-II,\ D-I \] \[ \therefore \text{Correct Answer is (A)} \]