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प्रश्न
Explain Why are stringed musical instruments provided with large sound boxes?
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उत्तर
The larger soundbox contains a large amount of trapped air. When the vibrations of the vibrating string are impressed upon the air, it starts vibrating with forced vibrations. As a large volume of enclosed air vibrates, a loud sound is produced.
संबंधित प्रश्न
The diagram above shows a wire stretched over a sonometer. Stems of two vibrating tuning forks A and Bare touched to the wooden box of the sonometer. It is observed that the paper rider (a small piece of paper folded at the centre) present on the wire flies off when the stem of vibrating tuning fork B is touched to the wooden box but the paper just vibrates when the stem of vibrating tuning fork A is touched to the wooden box.
1) Name the phenomenon when the paper rider just vibrates.
2) Name the phenomenon when the paper rider flies off.
3) Why does the paper rider fly off when the stem of tuning fork B is touched to the box?
How do you tune your radio set to a particular station ? Name the phenomenon involved in doing so and define it.
Name the phenomenon involved in tuning your radio set to a particular station and define it.
When a body vibrates under a periodic force, the vibrations of the body are ______.
Explain a tuning fork (vibrating) is held close to ear. One hears a faint sound. The same vibrating tuning fork is placed on table, such that its handle is in contact with table, one hears a loud sound.
Explain a person walking past a railway line, in the middle of night hears a ringing sound along with the sound of his footsteps.
What are the factors that affect the frequency of a vibrating string and how do they affect the frequency?
What do you understand by free vibrations of a body? Draw a displacement-time graph to represent them. Given one example.
