MCQOPTIONS
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MCQOPTIONS
This section includes 6 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 does the following graph show? |
| A. | Linearly Polarized Light |
| B. | Unpolarized Light |
| C. | Partially Polarized Light |
| D. | Circularly Polarized Light |
| Answer» E. | |
| 2. |
A tube of length 20cm containing a 10% sugar solution rotates the plane of polarization by 13.2°. What is the specific rotation of sugar solution? |
| A. | 66° |
| B. | 55° |
| C. | 44° |
| D. | 33° |
| Answer» B. 55° | |
| 3. |
What should be the thickness of quarter-wave plate for a light of wavelength 5000 Å if µe = 1.553 and µo = 1.544? |
| A. | 1.38 X 10-3 cm |
| B. | 1.43 X 10-3cm |
| C. | 1.53 X 10-3cm |
| D. | 1.63 X 10-3 cm |
| Answer» B. 1.43 X 10-3cm | |
| 4. |
An electromagnetic beam has an intensity 16 W/m2 and is linearly polarized vertically. What is the intensity of the transmitted beam, if the angle of incidence on the polaroid is 45° with the vertical? |
| A. | 8 Wm-1 |
| B. | 12 Wm-1 |
| C. | 16 Wm-1 |
| D. | 20 Wm-1 |
| Answer» B. 12 Wm-1 | |
| 5. |
The velocity of light in water is 1.5 X 108 m/s. What is the polarizing angle of incidence? |
| A. | 47.23° |
| B. | 51.02° |
| C. | 53.74° |
| D. | 63.43° |
| Answer» E. | |
| 6. |
If the phase difference between two rays is π/2 and the angle of incidence is equal to π/4, the emergent light is __________ |
| A. | Linearly Polarized |
| B. | Elliptically Polarized |
| C. | Circularly Polarized |
| D. | Non-Polarized |
| Answer» D. Non-Polarized | |