Advertisements
Advertisements
प्रश्न
When a body vibrates under a periodic force, the vibrations of the body are ______.
पर्याय
natural vibrations
Damped vibrations
Forced vibrations
Resonant vibrations
उत्तर
When a body vibrates under a periodic force, the vibrations of the body are forced vibrations.
Explanation:
A body's vibrations that take place under the influence of an external periodic force acting on it are called forced vibrations.
संबंधित प्रश्न
What are mechanical waves?
What are forced vibrations?
Distinguish between the free (or natural) and forced vibrations.
When a troop crosses a suspension bridge, the soldiers are asked to break steps. Explain the reason.
How do you tune your radio set to a particular station ? Name the phenomenon involved in doing so and define it.
On keeping the stem of a vibrating tuning fork on the surface of a table, a loud sound is heard. Give reason.
The diagram below shows three different modes of vibration P, Q and R of the same string of a given length.
 |
 |
 |
| P | Q | R |
- Which vibration will produce a louder sound and why?
- Which vibration will produce sound of maximum shrillness (or pitch) and why?
- What is the ratio of wavelength of vibrations P and R?
What do you mean by resonance? When does resonance occur?
State two ways in which resonance differs from forced vibrations.
