MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For what wavelength would a half wave plate behave as a half wave plate? |
| A. | 2 |
| B. | /2 |
| C. | 3 |
| D. | Never |
| Answer» B. /2 | |
| 2. |
8.What should be the thickness of quarter-wave plate for a light of wavelength 5890 if e = 1.553 and 0 = 1.544? |
| A. | 1.33 X 10<sup>-3</sup> cm |
| B. | 1.43 X 10<sup>-3</sup> cm |
| C. | 1.53 X 10<sup>-3</sup> cm |
| D. | 1.63 X 10<sup>-3</sup> cm |
| Answer» E. | |
| 3. |
If the thickness of a plate is 0.0032 cm, what shall be the phase retardation for a light of wavelength 5000 , given the principal refractive indices are 1.55 and 1.54? |
| A. | 1.05 radians |
| B. | 1.15 radians |
| C. | 1.25 radians |
| D. | 1.35 radians |
| Answer» C. 1.25 radians | |
| 4. |
What should be the minimum thickness of a half-wave plate made of calcite for the light of wavelength 5500 ? The principal refractive indices are 1.652 and 1.488. |
| A. | 1.234 m |
| B. | 1.676 m |
| C. | 1.956 m |
| D. | 2.165 m |
| Answer» D. 2.165 m | |
| 5. |
A Half-wave plate induces a phase difference of ____________ |
| A. | |
| B. | /4 |
| C. | /2 |
| D. | /3 |
| Answer» B. /4 | |
| 6. |
If a ray is incident at 45 on a quarter-wave plate, the emergent light is ___________ |
| A. | Unpolarized |
| B. | Linearly Polarized |
| C. | Elliptically Polarized |
| D. | Circularly Polarized |
| Answer» E. | |
| 7. |
Which phenomenon is used for inducing the phase shift in the retardation plates? |
| A. | Reflection |
| B. | Polaroid filters |
| C. | Double Refraction |
| D. | Polarimeter |
| Answer» D. Polarimeter | |
| 8. |
A quarter wave plate induces a phase shift of ___________ |
| A. | /6 |
| B. | /2 |
| C. | /4 |
| D. | /3 |
| Answer» C. /4 | |
| 9. |
A plate which induces the desired amount of phase difference between two rays is known as ____________ |
| A. | Polaroid |
| B. | Phasor plates |
| C. | Retardation Plates |
| D. | Quartz plates |
| Answer» D. Quartz plates | |