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प्रश्न
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उत्तर
Examples of forced vibrations:
1. When the stem of a vibrating tuning fork is pressed against the top of a table, the tuning fork forces the table top to vibrate with its own frequency. The vibrations produced in the table top are forced vibrations.
2. When a guitar is played, the vibrations produced by the strings of the guitar are the forced vibrations.
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संबंधित प्रश्न
What are mechanical waves?
In following figure shows two tuning forks A and B of the same frequency mounted on two separate sound boxes with their open ends facing each other. The fork A is set into vibration.
- Describe your observation.
- State the principle illustrated by this experiment.
Name the phenomenon involved in tuning your radio set to a particular station and define it.
Differentiate between the following:
Free and forced vibrations.
The rearview mirror of a motorbike starts vibrating violently at some particular speed of the motorbike. What is the name of the phenomenon taking place? Why does the happen?
Explain why are soldiers asked to walk out of step while crossing bridges?
When a tuning fork, struck by a rubber pad, is held over a length of the air column in a tube, it produces a loud sound for a fixed length of the air column. Name the above phenomenon. How does the frequency of the loud sound compare with that of the tuning fork? State the unit for measuring loudness.
Explain Why are stringed musical instruments provided with large sound boxes?
Explain free and forced vibrations. Give an experimental arrangement to illustrate the phenomenon of resonance.
