MCQOPTIONS
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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. |
A man is standing on a spring platform. Reading of spring balance is 60kg wt. If the man jumps outside from the platform, then the reading of spring balance will ___________ |
| A. | Increase |
| B. | Become zero |
| C. | Remains same |
| D. | First increases and then becomes zero |
| Answer» E. | |
| 2. |
A block has been placed on an inclined plane with the slope angle , block slides down the plant at a constant speed. The coefficient of kinetic energy is equal to ____________ |
| A. | sin |
| B. | cos |
| C. | g |
| D. | tan |
| Answer» E. | |
| 3. |
A monkey of mass 20 kg is holding a vertical rope. The rope will not break when a mass of 25 kg is suspended from it but will break if the mass exceeds 25kg. What is the minimum acceleration with which the monkey can climb up along the rope? (g = 10m/s2) |
| A. | 5m/s<sup>2</sup> |
| B. | 10m/s<sup>2</sup> |
| C. | 25m/s<sup>2</sup> |
| D. | 2.5m/s<sup>2</sup> |
| Answer» E. | |
| 4. |
Assertion: On a rainy day, it is difficult to drive at high speed.
|
| A. | If both assertion and reason are true and the reason is the correct explanation of the assertion |
| B. | If both assertion and reason are true but the reason is not correct explanation of the assertion |
| C. | If assertion is true, but the reason is false |
| D. | If both assertion and reason are false |
| Answer» B. If both assertion and reason are true but the reason is not correct explanation of the assertion | |
| 5. |
A person with a spring balance with a body hanging from it goes up in an aeroplane, then the reading of the weight of the body as indicated by the spring balance will ___________ |
| A. | Go on increasing |
| B. | Go on decreasing |
| C. | First increases and then decreases |
| D. | Remains the same |
| Answer» C. First increases and then decreases | |
| 6. |
A bullet is fired from the rifle. If the rifle recoils freely, then the kinetic energy of the rifle is ___________ |
| A. | Less than the kinetic energy of the bullet |
| B. | More than the kinetic energy of the bullet |
| C. | Same as the kinetic energy of the bullet |
| D. | Equal or less than the kinetic energy of the bullet |
| Answer» B. More than the kinetic energy of the bullet | |
| 7. |
The motion of a rocket is based on the principle of conservation of ___________ |
| A. | Linear momentum |
| B. | Angular momentum |
| C. | Kinetic energy |
| D. | Mass |
| Answer» B. Angular momentum | |
| 8. |
Rocket engines lift a rocket from the earth surface because of hot gases with high velocity ___________ |
| A. | Push against the air |
| B. | Push against the earth |
| C. | React against the rocket and push it up |
| D. | Heat up the air which lifts the rocket |
| Answer» D. Heat up the air which lifts the rocket | |