Harmonic Motion Multiple Questions and Answers.
Exercise Questions ::
Oscillations
6. | 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: Option C |
|
|
| Explanation: |
|
Lesser the damping force, more sharp is the resonance peak. |
| See More Information |
|
|
|
Tutorial Link: |
Published by:Michael Daani
7. | 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: Option C |
|
|
| Explanation: |
|
Time period, T=2π√(l/g) is independent of the mass of the bob. |
| See More Information |
|
|
|
Tutorial Link: |
Published by:Michael Daani
«