MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
Unpolarized light is incident on a polaroid of refractive index 1.2. What should be the angle of incidence such that the reflected and refracted rays are perpendicular to each other? |
| A. | 50.19° |
| B. | 55.23° |
| C. | 57.45° |
| D. | 60.89° |
| Answer» B. 55.23° | |
| 2. |
A polaroid can be used to polarize sound waves. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
A polarized light of Intensity 35 Wm2 is incident on the analyzer at a certain angle. If the transmitted beam has an Intensity of 30 Wm2, the angle made with the vertical is __________ |
| A. | 23° |
| B. | 34° |
| C. | 47° |
| D. | 19° |
| Answer» C. 47° | |
| 4. |
The second polaroid placed after the ray has been polarized is called as ____________ |
| A. | Polarizer |
| B. | Analyzer |
| C. | Brewster’s Window |
| D. | Multi Polaroid |
| Answer» D. Multi Polaroid | |
| 5. |
By using two Polaroids, one can completely block all the light coming from an object. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
The intensity of the light when viewed through a polaroid ____________ |
| A. | Increases to a small extent |
| B. | Increases infinitely |
| C. | Remains Same |
| D. | Decreases finitely |
| Answer» E. | |
| 7. |
A polaroid with molecules aligned vertically would have polarization axis in the ____________ |
| A. | Vertical Direction |
| B. | Horizontal Direction |
| C. | The direction of incident light |
| D. | Resultant of vertical and incident light |
| Answer» C. The direction of incident light | |
| 8. |
The alignment of the molecules in a polaroid gives the ____________ |
| A. | Propagation axis |
| B. | Polarization axis |
| C. | Unpolarized axis |
| D. | Pass-axis |
| Answer» C. Unpolarized axis | |