MCQOPTIONS
Saved Bookmarks
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. |
In Newton’s ring experiment, the diameter of the 10th ring changes from 1.40 to 1.23 cm when a liquid is introduced between the lens and glass plate. What is the refractive index of the liquid? |
| A. | 1.05 |
| B. | 1.15 |
| C. | 1.25 |
| D. | 1.35 |
| Answer» D. 1.35 | |
| 2. |
A thin layer of colorless oil is spread over water in a container (μ = 1.4). If the light of wavelength 640 nm is absent in the reflected light, what is the minimum thickness of oil layer? |
| A. | 179.6 nm |
| B. | 198.3 nm |
| C. | 207.6 nm |
| D. | 214.3 nm |
| Answer» E. | |
| 3. |
Which phenomenon is observed in the following figure? |
| A. | Wedge-Shaped film |
| B. | Destructive Interference |
| C. | Refraction |
| D. | Newton’s Rings |
| Answer» E. | |
| 4. |
According to stoke’s law, the expression for maxima is: 2μtcosr = ____________ |
| A. | nλ |
| B. | 2nλ |
| C. | (2n + 1) λ/2 |
| D. | (n + 1) λ/2 |
| Answer» D. (n + 1) λ/2 | |