MCQOPTIONS
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MCQOPTIONS
This section includes 58 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
A shot is fired at 30o with the vertical from a point on the ground with kinetic energy K. If air resistance is ignored, the kinetic energy at the top of the trajectory is: |
| A. | K/4 |
| B. | K |
| C. | K/2 |
| D. | 3K/4 |
| Answer» B. K | |
| 52. |
If a projectile is thrown with velocity 'u' and makes an angle 'θ' with the x-axis then the time of flight of projectile is given by the formula ________________ |
| A. | \(T = \frac{2u^2sinθ}{g}\) |
| B. | \(T = \frac{u^2sin^2θ}{2g}\) |
| C. | \(T = \frac{usin^2θ}{2g}\) |
| D. | \(T = \frac{2usinθ}{g}\) |
| Answer» E. | |
| 53. |
If 'R' is radius of circular motion and 'ν' represents frequency then the term '2πRν' is equal to ___________ of the particle. |
| A. | acceleration |
| B. | linear momentum |
| C. | speed |
| D. | angular momentum |
| Answer» D. angular momentum | |
| 54. |
If a cannon ball is fired at an angle of 30° with the horizontal at 20 m/s, what will be its maximum height (in m)? (use g = 10 m/s2) |
| A. | 5 |
| B. | 10 |
| C. | 15 |
| D. | 20 |
| Answer» B. 10 | |
| 55. |
An arrow is shot into air, its rage is 200 m and time of flight is 5 seconds. The horizontal component of velocity is _________, if g = 10 m/s2. |
| A. | 12.5 m/s |
| B. | 25 m/s |
| C. | 31.25 m/s |
| D. | 40 m/s |
| Answer» E. | |
| 56. |
An object is moving in a circle with uniform angular speed. If the radius of the circle is doubled, then its centripetal acceleration will |
| A. | be tripled |
| B. | be quadrupled |
| C. | be doubled |
| D. | remain the same |
| Answer» D. remain the same | |
| 57. |
If a ball is thrown with a velocity of 40 m/s at 30 degree angle with the horizontal, then for how long will it be in flight (in seconds)? (use g = 10 m/s2) |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | 3 |
| Answer» D. 3 | |
| 58. |
A particle is projected with a velocity of \(49\sqrt 2 \) m/sec in a direction making an angle 45° with the horizontal. It will be moving at right angles to the direction of projection after |
| A. | \(10\sqrt 2 \) sec |
| B. | 10 sec |
| C. | 8 sec |
| D. | 5 sec |
| Answer» C. 8 sec | |