MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
When a ray of light enters one medium from another medium, which quality will not change? |
| A. | Direction |
| B. | Frequency |
| C. | Speed |
| D. | Wavelength |
| Answer» C. Speed | |
| 2. |
The ratio of speed of light in air to the speed of light in another medium is called as _________ |
| A. | Speed factor |
| B. | Dielectric constant |
| C. | Reflection index |
| D. | Refraction index |
| Answer» E. | |
| 3. |
What is the numerical aperture of the fiber if the angle of acceptance is 16 degree? |
| A. | 0.5 |
| B. | 0.36 |
| C. | 0.20 |
| D. | 0.27 |
| Answer» E. | |
| 4. |
Light incident on fibers of angles________the acceptance angle do not propagate into the fiber. |
| A. | Less than |
| B. | Greater than |
| C. | Equal to |
| D. | Less than and equal to |
| Answer» C. Equal to | |
| 5. |
The light sources used in fibre optics communication are ____________ |
| A. | LED’s and Lasers |
| B. | Phototransistors |
| C. | Xenon lights |
| D. | Incandescent |
| Answer» B. Phototransistors | |
| 6. |
When a ray of light enters one medium from another medium, which quality will not chang? |
| A. | Direction |
| B. | Frequency |
| C. | Speed |
| D. | Wavelength |
| Answer» C. Speed | |
| 7. |
The ratio of speed of light in air to the speed of light in another medium is called as________? |
| A. | Speed factor |
| B. | Dielectric constant |
| C. | Reflection index |
| D. | Refraction index |
| Answer» E. | |
| 8. |
What is the numerical aperture of the fiber if the angle of acceptance is 16 degree |
| A. | 0.50 |
| B. | 0.36 |
| C. | 0.20 |
| D. | 0.27 |
| Answer» E. | |
| 9. |
Light incident on fibers of angles________the acceptance angle do not propagate into the fiber |
| A. | Less than |
| B. | Greater than |
| C. | Equal to |
| D. | Less than and equal to |
| Answer» C. Equal to | |
| 10. |
The ________ ray passes through the axis of the fiber core. |
| A. | Reflected |
| B. | Refracted |
| C. | Meridional |
| D. | Shew |
| Answer» D. Shew | |
| 11. |
The light sources used in fibre optics communication are : |
| A. | LED’s and Lasers |
| B. | Phototransistors |
| C. | Xenon lights |
| D. | Incandescent |
| Answer» B. Phototransistors | |
| 12. |
Which law gives the relationship between refractive index of the dielectric? |
| A. | Law of reflection |
| B. | Law of refraction (Snell’s Law). |
| C. | Millman’s Law |
| D. | Huygen’s Law |
| Answer» C. Millman‚Äö√Ñ√∂‚àö√ë‚àö¬•s Law | |
| 13. |
Who proposed the use of clad waveguide structure? |
| A. | Edward Appleton |
| B. | Schriever |
| C. | Kao and Hockham |
| D. | James Maxwell |
| Answer» D. James Maxwell | |
| 14. |
Who proposed the idea of transmission of light via dielectric waveguide structure? |
| A. | Christian Huygens |
| B. | Karpon and Bockham |
| C. | Hondros and debye |
| D. | Albert Einstein |
| Answer» D. Albert Einstein | |