MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communications Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Determine incident optical power on a photodiode if it has photocurrent of 2.1 μA and responsivity of 0.55 A/W. |
| A. | 4.15 |
| B. | 1.75 |
| C. | 3.81 |
| D. | 8.47 |
| Answer» D. 8.47 | |
| 2. |
Determine Responsivity of photodiode having o/p power of 3.55 μm and photo current of 2.9 μm. |
| A. | 0.451 |
| B. | 0.367 |
| C. | 0.982 |
| D. | 0.816 |
| Answer» E. | |
| 3. |
Determine the energy of photons incident on a photodiode if it operates at a wavelength of 1.36 μm. |
| A. | 1.22*10-34J |
| B. | 1.46*10-19J |
| C. | 6.45*10-34J |
| D. | 3.12*109J |
| Answer» C. 6.45*10-34J | |
| 4. |
Determine wavelength at which photodiode is operating if energy of photons is 1.9*10-19J? |
| A. | 2.33 |
| B. | 1.48 |
| C. | 1.04 |
| D. | 3.91 |
| Answer» D. 3.91 | |
| 5. |
Determine wavelength of photodiode having quantum efficiency of 40% and Responsivity of 0.304 AW-1. |
| A. | 0.87 μm |
| B. | 0.91 μm |
| C. | 0.88 μm |
| D. | 0.94 μm |
| Answer» E. | |
| 6. |
The Responsivity of photodiode is 0.294 AW-1at wavelength of 0.90 μm. Determine quantum efficiency. |
| A. | 0.405 |
| B. | 0.914 |
| C. | 0.654 |
| D. | 0.249 |
| Answer» B. 0.914 | |
| 7. |
The quantum efficiency of photodiode is 40% with wavelength of 0.90*10-6. Determine the responsivity of photodiodes. |
| A. | 0.20 |
| B. | 0.52 |
| C. | 0.29 |
| D. | 0.55 |
| Answer» D. 0.55 | |
| 8. |
A photodiode has quantum efficiency of 45% and incident photons are 3*1011. Determine electrons collected at terminals of device. |
| A. | 2.456*109 |
| B. | 1.35*1011 |
| C. | 5.245*10-7 |
| D. | 4.21*10-3 |
| Answer» C. 5.245*10-7 | |
| 9. |
Determine quantum efficiency if incident photons on photodiodes is 4*1011 and electrons collected at terminals is 1.5*1011? |
| A. | 50% |
| B. | 37.5% |
| C. | 25% |
| D. | 30% |
| Answer» C. 25% | |
| 10. |
The long cutoff wavelength of GaAs is 0.923 μm. Determine bandgap energy. |
| A. | 1.478*10-7 |
| B. | 4.265*10-14 |
| C. | 2.784*10-9 |
| D. | 2.152*10-19 |
| Answer» E. | |