- 1(current)
Q. No.Consider the following Statements A and B and identify the correct answer:
| A. | For a solar-cell, the \(I\text-V\) characteristics lies in the IV quadrant of the given graph. |
| B. | In a reverse-biased pn junction diode, the current measured in (\(\mu \text{A}\)), is due to majority charge carriers. |
| 1. | A is incorrect but B is correct. |
| 2. | Both A and B are correct. |
| 3. | Both A and B are incorrect. |
| 4. | A is correct but B is incorrect. |
Subtopic: Â Applications of PN junction |
 56%
From NCERT
NEET - 2024
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A solar cell is a:
| 1. | forward biased Zener diode. |
| 2. | type of light-emitting diode. |
| 3. | diode working on the principle of photo-voltaic effect. |
| 4. | type of photo-diode with external biasing. |
Subtopic: Â Applications of PN junction |
 74%
From NCERT
NEET - 2024
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Zener diode works:
| 1. | in forward bias only. |
| 2. | in reverse bias only. |
| 3. | as a voltage regulator in forward bias and as a simple pn junction diode in reverse bias. |
| 4. | as a voltage regulator in reverse bias and as a simple pn junction diode in forward bias. |
Subtopic: Â Applications of PN junction |
 57%
From NCERT
NEET - 2024
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The \(I\text-V\) characteristics shown below are exhibited by a:
| 1. | Light-emitting diode | 2. | Zener diode |
| 3. | Photodiode | 4. | Solar cell |
Subtopic: Â Applications of PN junction |
 65%
From NCERT
NEET - 2024
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Given below are two statements:
| Statement I: | Photovoltaic devices can convert optical radiation into electricity. |
| Statement II: | The Zener diode is designed to operate under reverse bias in the breakdown. |
| 1. | Statement I is incorrect but Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct but Statement II is incorrect. |
Subtopic: Â Applications of PN junction |
 78%
From NCERT
NEET - 2023
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The incorrect statement about the property of a Zener diode is:
| 1. | Zener voltage remains constant at the breakdown. |
| 2. | It is designed to operate under reverse bias. |
| 3. | The depletion region formed is very wide. |
| 4. | \(\mathrm{p}\) and \(\mathrm{n}\) regions of the Zener diode are heavily doped. |
Subtopic: Â Applications of PN junction |
 57%
From NCERT
NEET - 2022
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Given below are two statements:
| Statement A: | A Zener diode is connected in reverse bias when used as a voltage regulator. |
| Statement B: | The potential barrier of \(\mathrm{p\text-n}\) junction lies between \(0.2\) V to \(0.3\) V. |
| 1. | Statement A is correct and Statement B is incorrect. |
| 2. | Statement A is incorrect and Statement B is correct. |
| 3. | Statement A and Statement B both are correct. |
| 4. | Statement A and Statement B both are incorrect. |
Subtopic: Â Applications of PN junction |
 52%
From NCERT
NEET - 2021
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An LED is constructed from a \(\mathrm{p\text{-}n}\) junction diode using \(\mathrm{GaAsP}.\) The energy gap is \(1.9~\text{eV}.\) The wavelength of the light emitted will be equal to:
1. \(10.4 \times 10^{-26}~ \text{m}\)
2. \(654~ \text{nm}\)
3. \(654~ \text{m}\)
4. \(654\times 10^{-11}~\text{m}\)
Subtopic: Â Applications of PN junction |
 80%
From NCERT
NEET - 2019
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- 1(current)
Q. No.
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