MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
At the angle of polarization, p, the angle between the reflected and the refracted beam is __________ |
| A. | p |
| B. | |
| C. | /2 |
| D. | p/2 |
| Answer» D. p/2 | |
| 2. |
The sunlight as received by the observer is __________ |
| A. | Unpolarized |
| B. | Partially Polarized |
| C. | Polarized |
| D. | Varying Polarizability |
| Answer» D. Varying Polarizability | |
| 3. |
What angle should the beam made with the vertical, so that after passing through the analyzer, it s intensity should become 0.86 times the initial intensity? |
| A. | 30 |
| B. | 45 |
| C. | 60 |
| D. | 75 |
| Answer» D. 75 | |
| 4. |
A polarized light of Intensity 40 Wm2 is incident on the analyzer at a certain angle. If the transmitted beam has an Intensity of 20 Wm2, the angle made with the vertical is _____________ |
| A. | 30 |
| B. | 45 |
| C. | 60 |
| D. | 75 |
| Answer» C. 60 | |
| 5. |
The refractive index of a material is 1.75. What is the polarizing angle? |
| A. | 47.23 |
| B. | 51.02 |
| C. | 53.74 |
| D. | 60.25 |
| Answer» E. | |
| 6. |
For a glass surface, the value of polarizing angle is _________ |
| A. | 45.7 |
| B. | 52.7 |
| C. | 57.5 |
| D. | 67.8 |
| Answer» D. 67.8 | |
| 7. |
An unpolarized light can be polarized by __________ |
| A. | Reflection |
| B. | Refraction |
| C. | Diffraction |
| D. | Interference |
| Answer» B. Refraction | |
| 8. |
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 | |
| 9. |
The direction of polarization of an electromagnetic wave is considered to be the direction of __________ |
| A. | Electric Field |
| B. | Magnetic field |
| C. | Resultant of Electric field and Magnetic Field |
| D. | Perpendicular to both Electric and Magnetic Field |
| Answer» B. Magnetic field | |