MCQOPTIONS
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MCQOPTIONS
This section includes 19 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. |
The composition of two simple harmonic motions of equal periods at the right angle to each other and with a phase difference of π results in the displacement of the particle along? |
| A. | Circle |
| B. | Figure of eight |
| C. | Straight line |
| D. | Ellipse |
| Answer» D. Ellipse | |
| 2. |
Two simple pendulums of lengths 5m and 20m respectively are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has completed. |
| A. | 2 oscillations |
| B. | 1 oscillation |
| C. | 5 oscillations |
| D. | 3 oscillations |
| Answer» C. 5 oscillations | |
| 3. |
A particle with restoring force proportional to displacement and resisting force proportional to velocity is subjected to a force Fsinωt. If the amplitude of the particle is maximum for ω=ω1 and the energy of the particle maximum for ω=ω2, then? |
| A. | ω1≠ω0 and ω2=ω0 |
| B. | ω1=ω0 and ω2=ω0 |
| C. | ω1≠ω0 and ω2≠ω0 |
| D. | ω1≠ω0 and ω2≠ω0 |
| Answer» B. ω1=ω0 and ω2=ω0 | |
| 4. |
In case of a forced vibration, the resonance peak becomes very sharp when the ___________ |
| A. | Damping force is small |
| B. | Restoring force is small |
| C. | Applied periodic force is small |
| D. | Quality factor is small |
| Answer» B. Restoring force is small | |
| 5. |
A simple pendulum is suspended from the roof of a trolley which moves in a horizontal direction with an acceleration a, then the time period is given by T=2π√(l/g), where g is equal to ___________ |
| A. | g |
| B. | g-a |
| C. | g+a |
| D. | √(g2+a2 ) |
| Answer» E. | |
| 6. |
A second’s pendulum is mounted in a rocket. Its period of oscillation will decrease when rocket is ___________ |
| A. | Moving down with uniform acceleration |
| B. | Moving around the earth in geostationary orbit |
| C. | Moving up with uniform velocity |
| D. | Moving up with uniform acceleration |
| Answer» B. Moving around the earth in geostationary orbit | |
| 7. |
If the length of a simple pendulum is increased by 2%, then the time period ___________ |
| A. | Increases by 1% |
| B. | Decreases by 1% |
| C. | Increases by 2% |
| D. | Decreases by 2% |
| Answer» B. Decreases by 1% | |
| 8. |
Time period of a simple pendulum is 2sec. If its length is increased by 4 times, then its period becomes ___________ |
| A. | 8 sec |
| B. | 12 sec |
| C. | 16 sec |
| D. | 4 sec |
| Answer» E. | |
| 9. |
The time period of mass suspended from a spring is T. If the spring is cut into four equal parts and the same mass is suspended from one of the parts, then the new time period will be ___________ |
| A. | T/4 |
| B. | T |
| C. | T/2 |
| D. | 2T |
| Answer» D. 2T | |
| 10. |
A body of mass 5kg hangs from a spring and oscillates with a time period of 2π seconds. If the body is removed, the length of the spring will decrease by? |
| A. | g/k meters |
| B. | k/g meters |
| C. | 2π meters |
| D. | g meters |
| Answer» E. | |
| 11. |
Two simple pendulums of lengths 5m and 20m respectively are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has complete? |
| A. | 2 oscillations |
| B. | 1 oscillation |
| C. | 5 oscillations |
| D. | 3 oscillations |
| Answer» C. 5 oscillations | |
| 12. |
A particle with restoring force proportional to displacement and resisting force proportional to velocity is subjected to a force Fsinωt. If the amplitude of the particle is maximum for ω=ω1 and the energy of the particle maximum for ω=ω2, then$ |
| A. | ω<sub>1</sub>≠ω<sub>0</sub> and ω<sub>2</sub>=ω<sub>0</sub> |
| B. | ω<sub>1</sub>=ω<sub>0</sub> and ω<sub>2</sub>=ω<sub>0</sub> |
| C. | ω<sub>1</sub>≠ω<sub>0</sub> and ω<sub>2</sub>≠ω<sub>0</sub> |
| D. | ω<sub>1</sub>≠ω<sub>0</sub> and ω<sub>2</sub>≠ω<sub>0</sub> |
| Answer» B. ‚âà√¨‚àö¬¢<sub>1</sub>=‚âà√¨‚àö¬¢<sub>0</sub> and ‚âà√¨‚àö¬¢<sub>2</sub>=‚âà√¨‚àö¬¢<sub>0</sub> | |
| 13. |
In case of a forced vibration, the resonance peak becomes very sharp when the |
| A. | Damping force is small |
| B. | Restoring force is small |
| C. | Applied periodic force is small |
| D. | Quality factor is small |
| Answer» B. Restoring force is small | |
| 14. |
A simple pendulum is suspended from the roof of a trolley which moves in a horizontal direction with an acceleration a, then the time period is given by T=2π√(l/g), where g is equal to$ |
| A. | g |
| B. | g-a |
| C. | g+a |
| D. | ‚àö(g<sup>2</sup>+a<sup>2</sup> ) |
| Answer» E. | |
| 15. |
A second’s pendulum is mounted in a rocket. Its period of oscillation will decrease when rocket is$ |
| A. | Moving down with uniform acceleration |
| B. | Moving around the earth in geostationary orbit |
| C. | Moving up with uniform velocity |
| D. | Moving up with uniform acceleration |
| Answer» B. Moving around the earth in geostationary orbit | |
| 16. |
If the length of a simple pendulum is increased by 2%, then the time period |
| A. | Increases by 1% |
| B. | Decreases by 1% |
| C. | Increases by 2% |
| D. | Decreases by 2% |
| Answer» B. Decreases by 1% | |
| 17. |
Time period of a simple pendulum is 2sec. If its length is increased by 4 times, then its period becomes |
| A. | 8 sec |
| B. | 12 sec |
| C. | 16 sec |
| D. | 4 sec |
| Answer» E. | |
| 18. |
The time period of mass suspended from a spring is T. If the spring is cut into four equal parts and the same mass is suspended from one of the parts, then the new time period will be |
| A. | T/4 |
| B. | T |
| C. | T/2 |
| D. | 2T |
| Answer» D. 2T | |
| 19. |
A body of mass 5kg hangs from a spring and oscillates with a time period of 2π seconds. If the body is removed, the length of the spring will decrease by |
| A. | g/k meters |
| B. | k/g meters |
| C. | 2π meters |
| D. | g meters |
| Answer» E. | |