 
			 
			MCQOPTIONS
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				This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. | Which of the following is used as a voltage regulator? | 
| A. | Photodiode | 
| B. | Solar cell | 
| C. | LED | 
| D. | Zener diode | 
| Answer» E. | |
| 2. | The I-V characteristics of a LED are similar to that of Si junction diode. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 3. | Identify the one on which no external bias is applied. | 
| A. | Zener diode | 
| B. | Solar cell | 
| C. | Photodiode | 
| D. | Light-emitting diode | 
| Answer» C. Photodiode | |
| 4. | Which of the following converts light energy to electric current? | 
| A. | LED | 
| B. | Zener diode | 
| C. | Photodiode | 
| D. | Solar cell | 
| Answer» D. Solar cell | |
| 5. | Which of the following is operated in forward bias? | 
| A. | LED | 
| B. | Zener diode | 
| C. | Photodiode | 
| D. | Solar cell | 
| Answer» B. Zener diode | |