MCQOPTIONS
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MCQOPTIONS
This section includes 10 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 mass m is vertically suspended from a spring of negligible mass; the system oscillates with a frequency n. What will be the frequency of the system, if a mass 4m is suspended from the same spring? |
| A. | n/2 |
| B. | 4n |
| C. | n/4 |
| D. | 2n |
| Answer» B. 4n | |
| 2. |
A loaded vertical spring executes simple harmonic motion with a time period of 4 sec. The difference between the kinetic energy and potential energy of this system varies with a period of? |
| A. | 2 sec |
| B. | 1 sec |
| C. | 8 sec |
| D. | 4 sec |
| Answer» B. 1 sec | |
| 3. |
A body executes simple harmonic motion with amplitude A. At what displacement from the mean position is the potential energy of the body one fourth of its total energy? |
| A. | A/4 |
| B. | A/2 |
| C. | 3A/4 |
| D. | Some other fraction of A |
| Answer» C. 3A/4 | |
| 4. |
In a simple harmonic motion, when the displacement is one half the amplitude, what fraction of the total energy is kinetic? |
| A. | 1/2 |
| B. | 3/4 |
| C. | Zero |
| D. | 1/4 |
| Answer» C. Zero | |
| 5. |
The potential energy of a simple harmonic oscillation when the article is halfway to its end point is ___________ |
| A. | 2/3 E |
| B. | 1/8 E |
| C. | 1/4 E |
| D. | 1/2 E |
| Answer» D. 1/2 E | |
| 6. |
A linear harmonic oscillator of force constant 2 106 N/m and amplitude 0.01m has a total mechanical energy of 160J. Its ___________ |
| A. | Potential energy is 160 J |
| B. | Potential energy is zero |
| C. | Potential energy is 100J |
| D. | Potential energy is 120J |
| Answer» D. Potential energy is 120J | |
| 7. |
The particle executing simple harmonic motion has a kinetic energy K0 cos2 t. The maximum values of the potential energy and the total energy are respectively ___________ |
| A. | K<sub>c</sub>/2 and K<sub>0</sub> |
| B. | K<sub>0</sub> and K<sub>0</sub> |
| C. | K<sub>0</sub> and 2K<sub>0</sub> |
| D. | 0 and 2K<sub>0</sub> |
| Answer» C. K<sub>0</sub> and 2K<sub>0</sub> | |
| 8. |
The total energy of a particle performing simple harmonic motion depends on ___________ |
| A. | k, a, m |
| B. | k, a |
| C. | k, a, x |
| D. | k, x |
| Answer» C. k, a, x | |
| 9. |
A body is executing simple harmonic motion. When the displacements from the mean position are 4cm and 5cm, the corresponding velocities of the body are 10cm/sec and 8cm/sec. Thenwhat is the time period of the body? |
| A. | 2 sec |
| B. | /2 sec |
| C. | sec |
| D. | 3 /2 sec |
| Answer» D. 3 /2 sec | |
| 10. |
A simple pendulum performs simple harmonic motion about x = 0 with an amplitude a and time period T. The speed of the pendulum at x = a/2 will be ___________ |
| A. | ( a 3)/T |
| B. | ( a 3)/2T |
| C. | a/T |
| D. | (3 <sup>2</sup> a)/T |
| Answer» B. ( a 3)/2T | |