MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How is the emergent beam polarized? |
| A. | Linearly polarized |
| B. | Circularly polarized |
| C. | Elliptically polarized |
| D. | Unpolarized |
| Answer» C. Elliptically polarized | |
| 2. |
What should be the thickness of quarter-wave plate for a light of wavelength 5890 Å if μe = 1.553 and μ0 = 1.544? |
| A. | 1.33 X 10-3 cm |
| B. | 1.43 X 10-3 cm |
| C. | 1.53 X 10-3 cm |
| D. | 1.63 X 10-3 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 Å, given the principal refractive indices are 1.55 and 1.54? |
| A. | 1.05π radians |
| B. | 1.15π radians |
| C. | 1.25π radians |
| D. | 1.35π radians |
| Answer» C. 1.25π radians | |
| 4. |
What should be the minimum thickness of a half-wave plate made of calcite for the light of wavelength 5500 Å? The principal refractive indices are 1.652 and 1.488. |
| A. | 1.234 μm |
| B. | 1.676 μm |
| C. | 1.956 μm |
| D. | 2.165 μm |
| Answer» D. 2.165 μm | |
| 5. |
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. | |