MCQOPTIONS
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MCQOPTIONS
This section includes 3 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. |
Assertion: A this stainless steel needle can lay floating on a still water surface. |
| A. | Reason: Any objection floats, when the buoyancy force balances the weight of the object. |
| B. | Both assertion and reason are true and the reason is the correct explanation of the assertion |
| C. | Both assertion and reason are true but the reason is not the correct explanation of the assertion |
| D. | Assertion is true but the reason is false |
| E. | Assertion and reason is false |
| Answer» D. Assertion is true but the reason is false | |
| 2. |
The density of the atmosphere at sea level is 1.29kgm-3. Assume that is does not change with altitude. Then how high would the atmosphere extend? (g=9.8mm-2) |
| A. | 0.5km |
| B. | 0.8km |
| C. | 8km |
| D. | 80km |
| Answer» D. 80km | |
| 3. |
What will be the length of a mercury column in a barometer tube, when the atmospheric pressure is 75cm of mercury and the tube is inclined at an angle of 60° with the horizontal direction? |
| A. | 8.66cm |
| B. | 86.6cm |
| C. | 866cm |
| D. | 0.866cm |
| Answer» C. 866cm | |