MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 25 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. |
Which of the following is an evidence to show that here must be force acting on earth and directed toward the sun? |
| A. | Deviation of the falling bodies towards east |
| B. | Revolution of the earth round the sun |
| C. | Phenomenon of day and night |
| D. | Apparent motion of sun around the earth |
| Answer» C. Phenomenon of day and night | |
| 2. |
What is the mass of a body that weighs 1N at a [place where g = 9.80m/s]? |
| A. | 0kg |
| B. | 1.02kg |
| C. | 0.102kg |
| D. | 102kg |
| Answer» D. 102kg | |
| 3. |
What is the effect of rotation of earth on the acceleration due to gravity? |
| A. | The acceleration due to gravity decreases |
| B. | The acceleration due to gravity increases |
| C. | There is no effect |
| D. | The acceleration due to gravity first increases and then decreases |
| Answer» B. The acceleration due to gravity increases | |
| 4. |
A clock fitted with a pendulum and another with a spring indicate correct time on earth. Which shows correct time on the moon? |
| A. | Clock fitted with pendulum |
| B. | Clock fitted with spring |
| C. | Both the clocks |
| D. | Neither of the clocks |
| Answer» D. Neither of the clocks | |
| 5. |
What is the weight of the body at the centre of the earth? |
| A. | Infinity |
| B. | Same as the weight of the body on the earth |
| C. | Zero |
| D. | Cannot be determined |
| Answer» D. Cannot be determined | |
| 6. |
The earth revolves around the sun with an angular velocity of 2×10-7rad/s in a circular orbit of radius 1.5×108km. The force exerted by the sun on the earth in newton is? |
| A. | 30×1021 |
| B. | 27×1039 |
| C. | Zero |
| D. | 18×1025 |
| Answer» B. 27×1039 | |
| 7. |
If the distance between the earth and the sun were half its present value, the number of days in year would have been ___________ |
| A. | 64.5 |
| B. | 129 |
| C. | 182.5 |
| D. | 730 |
| Answer» C. 182.5 | |
| 8. |
If the radius of earth were to shrink by one percent (its mass remains the same), then the acceleration due to gravity on the earth’s surface ___________ |
| A. | Would decrease |
| B. | Would remain unchanged |
| C. | Would increase |
| D. | Cannot be predicted |
| E. | , then the acceleration due to gravity on the earth’s surface ___________a) Would decreaseb) Would remain unchangedc) Would increased) Cannot be predicted |
| Answer» D. Cannot be predicted | |
| 9. |
Statement 1- The comets do not obey the Kepler’s law of planetary motion.Statement 2- The comets do not have elliptical orbits. |
| 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 | |
| 10. |
The orbital speed of Jupiter is ___________ |
| A. | Greater than the orbital speed of earth |
| B. | Less than the orbital speed of earth |
| C. | Equal to the orbital speed of the earth |
| D. | Proportional to the distance from the earth |
| Answer» C. Equal to the orbital speed of the earth | |
| 11. |
The centre of mass of a body is often called ___________ |
| A. | Centre of attraction |
| B. | Centre of repulsion |
| C. | Centre of gravity |
| D. | Centre of acceleration |
| Answer» E. | |
| 12. |
WHAT_IS_THE_WEIGHT_OF_THE_BODY_AT_THE_CENTRE_OF_THE_EARTH??$ |
| A. | Infinity |
| B. | Same as the weight of the body on the earth |
| C. | Zero |
| D. | Cannot be determined |
| Answer» D. Cannot be determined | |
| 13. |
THE_EARTH_REVOLVES_AROUND_THE_SUN_WITH_AN_ANGULAR_VELOCITY_OF_2‚ÄÖ√†√∂‚Àւ•10-7RAD/S_IN_A_CIRCULAR_ORBIT_OF_RADIUS_1.5‚ÄÖ√†√∂‚Àւ•108KM._THE_FORCE_EXERTED_BY_THE_SUN_ON_THE_EARTH,_IN_NEWTON,_IS?$# |
| A. | 30√ó10<sup>21</sup> |
| B. | 27√ó10<sup>39</sup> |
| C. | Zero |
| D. | 18√ó10<sup>25</sup> |
| Answer» B. 27‚Äö√†√∂‚àö‚â•10<sup>39</sup> | |
| 14. |
A clock fitted with a pendulum and another with a spring indicate correct time on earth. Which shows correct time on the moon?$ |
| A. | Clock fitted with pendulum |
| B. | Clock fitted with spring |
| C. | Both the clocks |
| D. | Neither of the clocks |
| Answer» D. Neither of the clocks | |
| 15. |
Which of the following is an evidence to show that here must be force acting on earth and directed toward the sun? |
| A. | Deviation of the falling bodies towards east |
| B. | Revolution of the earth round the sun |
| C. | Phenomenon of day and night |
| D. | Apparent motion of sun around the earth |
| Answer» C. Phenomenon of day and night | |
| 16. |
What is the mass of a body that weighs 1N at a [place where g = 9.80m/s]? |
| A. | 0kg |
| B. | 1.02kg |
| C. | 0.102kg |
| D. | 102kg |
| Answer» D. 102kg | |
| 17. |
What is the effect of rotation of earth on the acceleration due to gravity? |
| A. | The acceleration due to gravity decreases |
| B. | The acceleration due to gravity increases |
| C. | There is no effect |
| D. | The acceleration due to gravity first increases and then decreases |
| Answer» B. The acceleration due to gravity increases | |
| 18. |
If the distance between the earth and the sun were half its present value, the number of days in year would have bee? |
| A. | 64.5 |
| B. | 129 |
| C. | 182.5 |
| D. | 730 |
| Answer» C. 182.5 | |
| 19. |
If the radius of earth were to shrink by one percent (its mass remains the same), then the acceleration due to gravity on the earth’s surface$ |
| A. | Would decrease |
| B. | Would remain unchanged |
| C. | Would increase |
| D. | Cannot be predicted |
| Answer» D. Cannot be predicted | |
| 20. |
A ball is dropped from a spacecraft revolving around the earth at a height of 120 km. What will happen to the ball? |
| A. | It will fall down to the earth gradually |
| B. | It will go very far in space |
| C. | It will continue to move with the same speed along the original orbit of spacecraft |
| D. | It will move with the same speed, tangentially to the spacecraft |
| Answer» D. It will move with the same speed, tangentially to the spacecraft | |
| 21. |
The acceleration due to gravity on the planet A is 9 times the acceleration due to gravity on planet B. A man jumps to a height of 2m on the surface of A. What is the height of jump by the same person on the planet B? |
| A. | 2/9 m |
| B. | 18 m |
| C. | 6 m |
| D. | 2/ m |
| Answer» C. 6 m | |
| 22. |
Statement 1- The comets do not obey the Kepler’s law of planetary motion$ |
| 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 | |
| 23. |
The orbital speed of Jupiter is |
| A. | Greater than the orbital speed of earth |
| B. | Less than the orbital speed of earth |
| C. | Equal to the orbital speed of the earth |
| D. | Proportional to the distance from the earth |
| Answer» C. Equal to the orbital speed of the earth | |
| 24. |
The centre of mass of a body is often called |
| A. | Centre of attraction |
| B. | Centre of repulsion |
| C. | Centre of gravity |
| D. | Centre of acceleration |
| Answer» E. | |
| 25. |
If the diameter of the earth becomes half its present value but its average density remains unchanged then how would be the weight of an object on the surface of the earth affected? |
| A. | The weight of the object remains unchanged |
| B. | The weight is doubled |
| C. | The weight will become one-fourth of the present value |
| D. | The weight is halved |
| Answer» E. | |