MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communication knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Silicon photodiodes provide high shunt conductance. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Silicon has indirect band gap energy of __________________ |
| A. | 1.2 eV |
| B. | 2 eV |
| C. | 1.14 eV |
| D. | 1.9 eV |
| Answer» D. 1.9 eV | |
| 3. |
The quantum efficiency of an optical detector should be high. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
SILICON_PHOTODIODES_PROVIDES_HIGH_SHUNT_CONDUCTANCE._STATE_WHETHER_THE_GIVEN_STATEMENT_IS_TRUE_OR_FALSE.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following detector is fabricated from semiconductor alloys? |
| A. | Photoconductive detector |
| B. | p-i-n detector |
| C. | Photodiodes |
| D. | Photoemission detectors |
| Answer» B. p-i-n detector | |
| 6. |
Silicon has indirect band gap energy of _________________? |
| A. | 1.2 eV |
| B. | 2 eV |
| C. | 1.14 eV |
| D. | 1.9 eV |
| Answer» D. 1.9 eV | |
| 7. |
____________ are widely used in first generation systems of optical fiber communication. |
| A. | p-n diodes |
| B. | 4-alloys |
| C. | 3-alloys |
| D. | Silicon photodiodes |
| Answer» E. | |
| 8. |
The ___________ process takes place in both extrinsic and intrinsic semiconductors. |
| A. | Avalanche multiplication |
| B. | External photoemission |
| C. | Internal photoemission |
| D. | Dispersion |
| Answer» D. Dispersion | |
| 9. |
How many device types are available for optical detection and radiation? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» C. Three | |
| 10. |
Which of the following does not explain the requirements of an optical detector? |
| A. | High quantum efficiency |
| B. | Low bias voltages |
| C. | Small size |
| D. | Low fidelity |
| Answer» E. | |
| 11. |
The quantum efficiency of an optical detector should be high. State whether the given statement is true or false. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
The first generation systems of optical fiber communication have wavelengths between ___________ |
| A. | 0.2 and 0.3 μm |
| B. | 0.4 and 0.6 μm |
| C. | 0.8 and 0.9 μm |
| D. | 0.1 and 0.2 μm |
| Answer» D. 0.1 and 0.2 ‚âà√≠¬¨‚à´m | |
| 13. |
____________ converts the received optical signal into an electrical signal. |
| A. | Detector |
| B. | Attenuator |
| C. | Laser |
| D. | LED |
| Answer» B. Attenuator | |