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प्रश्न
A vibrating tuning fork, held over an air column of a given length with its one end closed, produces a loud audible sound. Name the phenomenon responsible for it and explain the observation.
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उत्तर १
The phenomenon responsible for producing a loud audible sound is named resonance. The vibrating tuning fork causes the forced vibrations in the air column. For a certain length of air column, a loud sound is heard. This happens when the frequency of the air column becomes equal to the frequency of the tuning fork.
उत्तर २
Resonance describes the phenomenon. When the tuning fork frequency is 256 Hz, the loudness of a sound can be either 256 Hz or an integer multiple of 256. i.e., (256 × 1) Hz, (256 × 2) Hz, (256 × 3) Hz, ... or (256 × 5). In other words, the frequency of the tuning fork is 256 Hz, 512 Hz, 768 Hz or 1280 Hz.
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संबंधित प्रश्न
In following figure shows A, B , C and D represent test tube each of height 20 cm which are filled with water up to heights of 12 cm, 14 cm, 16cm and 18cm respectively. If a vibrating tuning fork is placed over the mouth if test tube D, a loud sound is heard.
- Describe the observations with the tubes A, B and C when the vibrating tuning fork is placed over the mouth of these tubes.
- Give the reason for your observation in each case.
- State the principle illustrated by the above experiment.
In fig. shows two tuning forks P and Q of the same frequency mounted on separate sound boxes with their open ends facing each other. The fork A is set into vibration. (i) Describe your observation. (ii) State the principle illustrated by this experiment.
What do you mean by resonance? When does resonance occur?
When acoustic resonance takes place, a loud sound is heard. Why does this happen? Explain.
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The rearview mirror of a motorbike starts vibrating violently at some particular speed of the motorbike, what could be done to stop the violent vibrations.
Explain why does the rear mirror of a motorbike start Vibrating Violently, at some particular speed of motorbike?
Explain a person walking past a railway line, in the middle of night hears a ringing sound along with the sound of his footsteps.
Explain Why are stringed musical instruments provided with large sound boxes?
