MCQOPTIONS
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MCQOPTIONS
This section includes 4 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. |
What should be the thickness of quarter-wave plate for a light of wavelength 5890 Å if µe = 1.553 and µo = 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. | |
| 2. |
An electromagnetic beam has an intensity 28 W/m2 and is linearly polarized vertically. What is the intensity of the transmitted beam, if the angle of incidence on the polaroid is 45o with the vertical? |
| A. | 10 Wm-1 |
| B. | 12 Wm-1 |
| C. | 14 Wm-1 |
| D. | 16 Wm-1 |
| Answer» D. 16 Wm-1 | |
| 3. |
The velocity of light in water is 2.2 X 108 m/s. What is the polarizing angle of incidence? |
| A. | 47.23 |
| B. | 51.02 |
| C. | 53.74 |
| D. | 65.36 |
| Answer» D. 65.36 | |
| 4. |
If the phase difference between two rays is π/2 and the angle of incidence is not equal to π/4, the emergent light is __________ |
| A. | Linearly Polarized |
| B. | Elliptically Polarized |
| C. | Circularly Polarized |
| D. | Non-Polarized |
| Answer» C. Circularly Polarized | |