MCQOPTIONS
Saved Bookmarks
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. |
In a capillary tube experiment, a vertical, 30 cm long capillary tube is dipped in water. The water rises up to a height of 10 cm due to capillary action. If this experiment is conducted in a freely falling elevator, the length of the water column becomes ___________ |
| A. | 10 cm |
| B. | 20 cm |
| C. | 30 cm |
| D. | Zero |
| Answer» D. Zero | |
| 2. |
At a critical temperature, the surface tension of a liquid ___________ |
| A. | Is zero |
| B. | Is infinity |
| C. | Is the same as any other temperature |
| D. | Cannot be determined |
| Answer» B. Is infinity | |
| 3. |
Assertion: A this stainless steel needle can lay floating on a still water surface.
|
| A. | Both assertion and reason are true and the reason is the correct explanation of the assertion |
| B. | Both assertion and reason are true but the reason is not the correct explanation of the assertion |
| C. | Assertion is true but the reason is false |
| D. | Assertion and reason is false |
| Answer» D. Assertion and reason is false | |
| 4. |
A 20cm long capillary tube is dipped in water. The water rises up to 8cm. If the entire arrangement is put in a freely falling elevator the length of the water column in the capillary tube will be ___________ |
| A. | 4cm |
| B. | 20cm |
| C. | 8cm |
| D. | 10cm |
| Answer» C. 8cm | |
| 5. |
If two soap bubbles of different radii are connected by a tube ___________ |
| A. | Air flow from the bigger bubble to the smaller bubble till the sizes become equal |
| B. | Air flows from bigger bubble to the smaller bubble till the sizes are interchanged |
| C. | Air flows from the smaller bubble to the bigger |
| D. | There is no flow of air |
| Answer» D. There is no flow of air | |
| 6. |
Statement 1: The stream of water flowing at high speed from a garden hose pipe tends to spread like a fountain when held vertically up, but tends to narrow down when held vertically down.
|
| A. | Statement 1 is true, statement 2 is true. Statement 2 is a correct explanation for statement 1 |
| B. | Statement 1 is true, statement 2 is true. Statement 2 is not a correct explanation for statement 1 |
| C. | Statement 1 is true, statement 2 is false |
| D. | Statement 1 is false, statement 2 is true |
| Answer» B. Statement 1 is true, statement 2 is true. Statement 2 is not a correct explanation for statement 1 | |
| 7. |
A closed compartment containing gas in moving with some acceleration on horizontal direction. Neglect effect of gravity. Then the pressure in the compartment is ___________ |
| A. | Same everywhere |
| B. | Lower in the front side |
| C. | Lower in the rear side |
| D. | Lower in the upper side |
| Answer» C. Lower in the rear side | |
| 8. |
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 | |