MCQOPTIONS
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MCQOPTIONS
This section includes 17 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. |
A satellite orbiting the earth with speed v0. To make the satellite escape, what should be the minimum percentage increase in its velocity? |
| A. | 41.5% |
| B. | 44.1% |
| C. | 41.4% |
| D. | 40% |
| Answer» D. 40% | |
| 2. |
A satellite does not need ant fuel to circle around the earth. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
It is possible to place an artificial satellite in an orbit, such that it is always visible over New Delhi. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
An astronaut, while revolving in a circular orbit happens to throw a spoon outside. What will happen to the spoon? |
| A. | It will reach the earth surface |
| B. | It will escape the universe |
| C. | It will remain stationary |
| D. | It will continue to move in a circular orbit |
| Answer» E. | |
| 5. |
The value of escape velocity on a certain planet is 2km/s. Then the value of orbital speed for a satellite orbiting close to its surface is ___________ |
| A. | 12km/s |
| B. | 1km/s |
| C. | √2km/s |
| D. | 2√2km/s |
| Answer» D. 2√2km/s | |
| 6. |
A satellite revolves very near to the earth surface. Its speed should be around? |
| A. | 5km/s |
| B. | 8km/s |
| C. | 2km/s |
| D. | 11km/s |
| Answer» C. 2km/s | |
| 7. |
If the earth stops rotating, the value of g at the equator ___________ |
| A. | Increases |
| B. | Decreases |
| C. | No effect |
| D. | First increases and then decreases |
| Answer» B. Decreases | |
| 8. |
Statement 1 – The length of the day is slowly increasing.Statement 2 – The dominant effect causing a slow down in the rotation of the earth is the gravitational pull of other planets in the solar system. |
| A. | Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1 |
| B. | Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1 |
| C. | Statement 1 is true but statement 2 is false |
| D. | Both statement 1 and 2 are false |
| Answer» E. | |
| 9. |
A_SATELLITE_DOES_NOT_NEED_ANT_FUEL_TO_CIRCLE_AROUND_THE_EARTH.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
A satellite orbiting the earth with speed v0. To make the satellite escape, what should be the minimum percentage increase in its velocity?$ |
| A. | 41.5% |
| B. | 44.1% |
| C. | 41.4% |
| D. | 40% |
| Answer» D. 40% | |
| 11. |
It is possible to place an artificial satellite in an orbit, such that it is always visible over New Delhi? |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
An astronaut, while revolving in a circular orbit happens to throw a spoon outside. What will happen to the spoon? |
| A. | It will reach the earth surface |
| B. | It will escape the universe |
| C. | It will remain stationary |
| D. | It will continue to move in a circular orbit |
| Answer» E. | |
| 13. |
An elephant and an ant are to be projected out of the earth into space. What is the velocity needed to do so? |
| A. | Elephant needs to be projected with a higher velocity |
| B. | Ant should be projected with a higher velocity |
| C. | Both should be projected with the same velocity |
| D. | Elephant cannot be projected to space |
| Answer» D. Elephant cannot be projected to space | |
| 14. |
If gravitational constant is decreasing with time, what will remain unchanged in case of a satellite orbiting around the earth? |
| A. | Time period |
| B. | Orbiting radius |
| C. | Areal velocity |
| D. | Angular velocity |
| Answer» D. Angular velocity | |
| 15. |
The value of escape velocity on a certain planet is 2km/s. Then the value of orbital speed for a satellite orbiting close to its surface is |
| A. | 12km/s |
| B. | 1km/s |
| C. | ‚àö2km/s |
| D. | 2‚àö2km/s |
| Answer» D. 2‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇ2km/s | |
| 16. |
A satellite revolves very near to the earth surface. Its speed should be around |
| A. | 5km/s |
| B. | 8km/s |
| C. | 2km/s |
| D. | 11km/s |
| Answer» C. 2km/s | |
| 17. |
If the earth stops rotating, the value of g at the equator |
| A. | Increases |
| B. | Decreases |
| C. | No effect |
| D. | First increases and then decreases |
| Answer» B. Decreases | |