MCQOPTIONS
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MCQOPTIONS
This section includes 15 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 simple pendulum is vibrating in an evacuated chamber. It will oscillate with ___________ |
| A. | Constant amplitude |
| B. | Increasing amplitude |
| C. | Decreasing amplitude |
| D. | First increasing amplitude and then decreasing amplitude |
| Answer» B. Increasing amplitude | |
| 2. |
A hollow spherical pendulum is filled with mercury has time period T. If mercury is thrown out completely, then the new time period ___________ |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | First increases and then decreases |
| Answer» D. First increases and then decreases | |
| 3. |
A simple pendulum is executing simple harmonic motion with a time period T. If the length of the pendulum is increased by 21%, the increase in the time period of the pendulum of increased length is? |
| A. | 10% |
| B. | 30% |
| C. | 21% |
| D. | 50% |
| Answer» B. 30% | |
| 4. |
The time period of a simple pendulum is 2 sec. If its length is increased by 4 times, then its period becomes ___________ |
| A. | 16 sec |
| B. | 8 sec |
| C. | 12 sec |
| D. | 4 sec |
| Answer» E. | |
| 5. |
Time period of a simple pendulum will be double if we ___________ |
| A. | Decrease the length 2 times |
| B. | Decrease the length 4 times |
| C. | Increase the length 2 times |
| D. | Increase the length 4 times |
| Answer» E. | |
| 6. |
To show that a simple pendulum executes simple harmonic motion, it is necessary to assure that ___________ |
| A. | Length of the pendulum is small |
| B. | Amplitude of oscillation is small |
| C. | Mass of the pendulum is small |
| D. | Acceleration due to gravity is small |
| Answer» C. Mass of the pendulum is small | |
| 7. |
A particle executes simple harmonic motion of amplitude A. At what distance from the mean position is its kinetic energy equal to its potential energy? |
| A. | 0.51A |
| B. | 0.71A |
| C. | 0.61A |
| D. | 0.81A |
| Answer» C. 0.61A | |
| 8. |
A particle having potential energy 1/3 of the maximum value at a distance of 4 cm from mean position. Amplitude of motion is ___________ |
| A. | 4 3 |
| B. | 6/ 2 |
| C. | 2/ 6 |
| D. | 2 6 |
| Answer» B. 6/ 2 | |
| 9. |
A particle executing simple harmonic motion has amplitude 0.01 and frequency 60Hz. The maximum acceleration of the particle is ___________ |
| A. | 144 <sup>2</sup> m/s<sup>2</sup> |
| B. | 80 <sup>2</sup> m/s<sup>2</sup> |
| C. | 120 <sup>2</sup> m/s<sup>2</sup> |
| D. | 60 <sup>2</sup> m/s<sup>2</sup> |
| Answer» B. 80 <sup>2</sup> m/s<sup>2</sup> | |
| 10. |
The maximum velocity and maximum acceleration of a body moving in a simple harmonic motion are 2m/s and 4m/s2 respectively. What will be the angular velocity? |
| A. | 4 rad/sec |
| B. | 3 rad/sec |
| C. | 2 rad/sec |
| D. | 8 rad/sec |
| Answer» D. 8 rad/sec | |
| 11. |
The magnitude of acceleration of particle executing simple harmonic motion at the position of maximum displacement is? |
| A. | Zero |
| B. | Minimum |
| C. | Maximum |
| D. | Infinity |
| Answer» D. Infinity | |
| 12. |
A particle is executing simple harmonic motion of amplitude 10cm. Its time period of oscillation is seconds. The velocity of the particle when it is 2 cm from extreme position is ___________ |
| A. | 10 cm/s |
| B. | 12 cm/s |
| C. | 16 16 cm/s |
| D. | 16 cm/s |
| Answer» C. 16 16 cm/s | |
| 13. |
A body is executing the simple harmonic motion with an angular frequency of 2rad/sec. Velocity of the body at 20m displacement, when amplitude of motion is 60m, is ___________ |
| A. | 90 m/s |
| B. | 118 m/s |
| C. | 113 m/s |
| D. | 131 m/s |
| Answer» D. 131 m/s | |
| 14. |
A particle executes simple harmonic motion, its time period is 16s. If it passes through the centre of oscillation, then its velocity is 2 m/s at time 2s. The amplitude will be ___________ |
| A. | 7.2m |
| B. | 4cm |
| C. | 6cm |
| D. | 0.72m |
| Answer» B. 4cm | |
| 15. |
A particle in simple harmonic motion is described by the displacement function x(t)=Acos ( t+ ). If the initial (t=0) position of the particle is 1cm and its initial velocity is cm/s, what is its amplitude? The angular frequency is the particle is rad/s. |
| A. | 1 cm |
| B. | 2 cm |
| C. | 2 cm |
| D. | 2.5 cm |
| Answer» C. 2 cm | |