MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Which of the following shows the emergent beam correctly? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9a.png"><img alt="The following shows the emergent beam correctly - option a" class="alignnone size-full wp-image-251640" height="283" sizes="(max-width: 552px) 100vw, 552px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9a.png 552w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9a-300x154.png 300w" width="552"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9b.png"><img alt="The following shows the emergent beam correctly - option b" class="alignnone size-full wp-image-251641" height="348" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9b.png" width="42"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9c.png"><img alt="The following shows the emergent beam correctly - option c" class="alignnone size-full wp-image-251642" height="255" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9c.png" width="183"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9d.png"><img alt="The following shows the emergent beam correctly - option d" class="alignnone size-full wp-image-251643" height="246" sizes="(max-width: 244px) 100vw, 244px" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9d.png 244w, https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9d-150x150.png 150w" width="244"/></a> |
| Answer» C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9c.png"><img alt="The following shows the emergent beam correctly - option c" class="alignnone size-full wp-image-251642" height="255" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/engineering-physics-questions-answers-polaroids-q9c.png" width="183"/></a> | |
| 3. |
A polaroid can be used to polarize sound waves. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
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 | |
| 5. |
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 | |
| 6. |
By using two Polaroids, one can completely block all the light coming from an object. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
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. | |
| 8. |
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 | |
| 9. |
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 | |
| 10. |
Which of the following is a uniaxial crystal? |
| A. | Borax |
| B. | Mica |
| C. | Quartz |
| D. | Selenite |
| Answer» D. Selenite | |