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. |
Statement 1- The stars twinkle, while the planets do not.Statement 2- The stars are much bigger in size than the planets. |
| 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» C. Statement 1 is true but statement 2 is false | |
| 2. |
A missile is launched with a velocity less than escape velocity. The sum of its kinetic energy and potential energy is ___________ |
| A. | Zero |
| B. | Positive |
| C. | Negative |
| D. | First positive and then negative |
| Answer» D. First positive and then negative | |
| 3. |
There is no atmosphere on the moon, because ___________ |
| A. | It is closer to the earth and also it has inactive inter gases in it |
| B. | It is too far from the sun and also it has very low pressure on its outer surface |
| C. | Escape velocity of gas molecules is greater than their root mean square velocity |
| D. | Escape velocity of gas molecules is less than their root mean square velocity |
| Answer» E. | |
| 4. |
At which part of the earth’s surface, the value of g is largest? |
| A. | At the equator |
| B. | Immediately below the equator |
| C. | Immediately above the equator |
| D. | At the poles |
| Answer» E. | |
| 5. |
A gravitational law is also called ___________ |
| A. | Universal law |
| B. | Newton’s law |
| C. | Constant law |
| D. | True law |
| Answer» B. Newton’s law | |
| 6. |
If the radius of the earth decreases by 1% and its mass remains the same, then the acceleration due to gravity ___________ |
| A. | Increases by 1% |
| B. | Decreases by 1% |
| C. | Increases by 2% |
| D. | Decreases by 2% |
| Answer» D. Decreases by 2% | |
| 7. |
If suddenly the gravitational force of attraction between the earth and a satellite revolving around it becomes zero, then the satellite will ___________ |
| A. | Continue to move in its orbit with the same velocity |
| B. | Move tangentially to the original orbit with the same velocity |
| C. | Become stationary in its orbit |
| D. | Move towards the earth |
| Answer» C. Become stationary in its orbit | |
| 8. |
A_MISSILE_IS_LAUNCHED_WITH_A_VELOCITY_LESS_THAN_ESCAPE_VELOCITY._THE_SUM_OF_ITS_KINETIC_ENERGY_AND_POTENTIAL_ENERGY_IS?$ |
| A. | Zero |
| B. | Positive |
| C. | Negative |
| D. | First positive and then negative |
| Answer» D. First positive and then negative | |
| 9. |
Statement_1-_The_stars_twinkle,_while_the_planets_do_not$ |
| A. | |
| B. | Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1 |
| C. | Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1 |
| Answer» C. Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1 | |
| 10. |
There is no atmosphere on the moon, becaus? |
| A. | It is closer to the earth and also it has inactive inter gases in it |
| B. | It is too far from the sun and also it has very low pressure on its outer surface |
| C. | Escape velocity of gas molecules is greater than their root mean square velocity |
| D. | Escape velocity of gas molecules is less than their root mean square velocity |
| Answer» E. | |
| 11. |
A body weighed 250N on the surface. Assuming the earth to be a sphere of uniform mass density, how much would it weigh half way down to the centre of earth? |
| A. | 240N |
| B. | 210N |
| C. | 195N |
| D. | 125N |
| Answer» E. | |
| 12. |
At which part of the earth’s surface, the value of g is largest?$ |
| A. | \At the equator |
| B. | Immediately below the equator |
| C. | Immediately above the equator |
| D. | At the poles |
| Answer» E. | |
| 13. |
A body weighs more at the poles than at the equator. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
If the diameter if the earth becomes twice its present value but its mass remains unchanged, then how would be the weight of an object on the surface of the earth affected? |
| A. | 1/2 W |
| B. | 1/3 W |
| C. | 1/4 W |
| D. | W |
| Answer» D. W | |
| 15. |
A gravitational law is also called |
| A. | Universal law |
| B. | Newton’s law |
| C. | Constant law |
| D. | True law |
| Answer» B. Newton‚Äö√Ñ√∂‚àö√ë‚àö¬•s law | |
| 16. |
If the radius of the earth decreases by 1% and its mass remains the same, then the acceleration due to gravity |
| A. | Increases by 1% |
| B. | Decreases by 1% |
| C. | Increases by 2% |
| D. | Decreases by 2% |
| Answer» D. Decreases by 2% | |
| 17. |
If suddenly the gravitational force of attraction between the earth and a satellite revolving around it becomes zero, then the satellite will |
| A. | Continue to move in its orbit with the same velocity |
| B. | Move tangentially to the original orbit with the same velocity |
| C. | Become stationary in its orbit |
| D. | Move towards the earth |
| Answer» C. Become stationary in its orbit | |