MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
If the metal bob of a simple pendulum is replaced by a wooden bob, then its time period will ___________ |
| A. | Increase |
| B. | Decrease |
| C. | Remains the same |
| D. | First increases and then decreases |
| Answer» D. First increases and then decreases | |
| 2. |
In case of a forced vibration, the resonance wave becomes very sharp when the ___________ |
| A. | Applied periodic force is small |
| B. | Quality factor is small |
| C. | Damping force is small |
| D. | Restoring force is small |
| Answer» D. Restoring force is small | |
| 3. |
The mass and the radius of a planet are twice that of earth. Then, period of oscillation of a second pendulum on that planet will be ___________ |
| A. | 1/ 2s |
| B. | 2 2s |
| C. | 2s |
| D. | 1/2s |
| Answer» C. 2s | |
| 4. |
When the maximum kinetic energy of a simple pendulum is K, then what its displacement (in terms of amplitude a) when its kinetic energy is K/2? |
| A. | a/ 2 |
| B. | a/2 |
| C. | a/ 3 |
| D. | a/3 |
| Answer» B. a/2 | |
| 5. |
What is the maximum acceleration of the particle executing the simple harmonic motion, y = 2sin[( t/2)+ ], where y is in cm? |
| A. | /2 cm/s<sup>2</sup> |
| B. | <sup>2</sup>/2 cm/s<sup>2</sup> |
| C. | /4 cm/s<sup>2</sup> |
| D. | <sup>2</sup>/4 cm/s<sup>2</sup> |
| Answer» C. /4 cm/s<sup>2</sup> | |
| 6. |
In a simple harmonic oscillator, at the mean position ___________ |
| A. | Kinetic energy in minimum, potential energy is maximum |
| B. | Both kinetic and potential energies are maximum |
| C. | Kinetic energy is maximum, potential energy is minimum |
| D. | Both kinetic and potential energies are minimum |
| Answer» D. Both kinetic and potential energies are minimum | |
| 7. |
A spring of force constant k is cut into two pieces, such that one piece is double the length of the other. Then the long piece will have a force constant of ___________ |
| A. | (2/3) k |
| B. | (3/2) k |
| C. | 3k |
| D. | 6k |
| Answer» C. 3k | |
| 8. |
A pendulum watch can be used in an artificial satellite. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Every simple harmonic motion is periodic motion, but every periodic motion need not be simple harmonic motion. |
| A. | True |
| B. | False |
| Answer» B. False | |